Started with Don Francis's old data base, and added more rifles.  The rifles I added are yours and mine, and a bunch off Gunbroker, Gunsamerica, and Auctionarms.

1983-1985

2116xx CARBINE no forge code on upper

2101xx CARBINE CM forging, does not look like there is a forge code on the FSB, A2 grip

2082xx CARBINE CH forging, C and bell FSB

207796 no details

20258X CM upper, Coltguard nickle finish, FSB has a diamond with a B inside and two smaller letters inside to the right of the B that look like a over a P an I

202xxx nickle finish

200720 CH forge code upper, barrel marked CHROME BORE, C and bell FSB

198xxx C and bell FSB

191678 CARBINE CH forging, barrel marked CHROME BORE

19097X no details

184355 CARBINE, can't make out the forge code, nickle finish, A2 grip,

183XXX CARBINE CH forging, barrel marked C MP CHROME BORE

1812XX CM forge code, Hammer has "C" in circle and a 6 or 9 in circle with FP cutout, bobbed disconector, barrel marked C MP chrome bore, front site has a "B1" in diamond, unshrouded bolt carrier C stamped with FA notches, bolt etched MPC, ejector has either 3 or 4 coils with white buffer

179XXX unusual in that it has a modern carrier with no forward assist cuts

1767XX, Upper Forging marked C M, Barrel marked C MP CHROME BORE, 16" Barrel Collapsible stock, bolt carrier marked- C

176728 can't make out the forge code

175xxx CARBINE CH forging

175091 CARBINE, later lower forging with curved reinforcment by receiver extention

1757xx CARBINE can't make out the forge code, no forge code on FSB

174XXX CM forging, barrel marked CHROME BORE, bell an C FSB

174247 has replacement lone star handguards

173XXX made in 1983

1982

1730XX CARBINE CM forging, Barrel marked C MP CHROME BORE, FSB with "C" near top, "bell" on lower area, purchased NIB in late Nov. 82

162991 CM forge code

155427 close up of left side

1562xx CARBINE

154XXX no details

145xxx. CM forge code barrel marked CHROME BORE

144957 forward assist cuts in carrier

141xxx CM forging, made in 1982

140320 CARBINE, CM forging, barrel marked CHOMRE BORE

1981

139415 CARBINE CM forging, barrel marked CHROME BORE

1385xx CM forging, barrel marked CHROME BORE, C and bell FSB

1312xx CM forging, barrel marked C MP B, C and bell FSB

130476 CM forging, C and bell FSB

1980

128949 Carbine, "C" forged front sight base, Barrel stamped "C MP Chrome Bore", A1 Flash hider with lock washer, and the wrench flats indexed in the 90 degree vertical position, rivited front sling swivel, CM forged A1 reciever, no forward assist, square proof stamp forward of ejection port door, factory staked Vinyl coated collapsable butt stock marked with an "NN" in an oval and a "1" under the latch, "C" stamped full circle AR carrier, non shrouded firing pin, "MPC" marked bolt, Forward assist notched carrier, ejector not marked.

128132 trap door buttstock, flash suppresor swapped out for a three prong

12402X CARBINE, C M Forge code below sight "C" in a square behind the delta ring, Full circle C marked bolt carrier MPC bolt. Don't see any mark on the extractor. White spring insert, C mark on FSB, C MP CHROME BORE on top of bbl. A1 FH, metal 2 position nylon coated buttstock, still has the paint on the buffer tube nut stakes and on the bolt stop pin.

123xxx C and bell FSB

122XXX can't make out forge code, barrel marked CHROME BORE,

121027 CM forge code, A1 birdcage FH, Barrel marked "C MP Chrome Bore", FSB Marked "C",
no proof stamps on upper, "C" marked full circle AR carrier, "C" marked ejector, 4 coil spring with white insert, "MPC" marked bolt, bobbed disconnector, factory touch up paint on mag release roll pin area on both upper and lower

120xxx can't read the upper forge code, barrel marked CHROME BORE, made in 1980

1195xx CM forge code, no forge code FSB, barrel marked CHROME BORE

1182XX CM forging, no forge code on FSB, barrel marked CHROME BORE

117623 Carbine

116221 Carbine CM forge code upper, barrel marked CHROME BORE

1114xx Carbine CM forge code upper, made in 1980

106919 CM forge code, A1 birdcage FH, Barrel marked "C MP Chrome Bore", "C" marked FSB, "C" marked AR carrier, "C" stamped ejector with white insert, "MPC" marked bolt, bobbed disconnector, factory touch up paint on mag release roll pin area

1979

100473 CM forge code, forward assist cuts, barrel marked CHROME BORE, C marked FSB

1042X2 CM forge code, made in 1979, barrel marked CHROME BORE, selector has notch on right side

979XX CM forge code, rollmarked FIREARMS DIV, barrel Marked C MP Chrome Bore, Front Site Base Marked with a C,
Birdcage Flash, Trap Door Stock,, bolt marked MPC, Carrier marked C, No marks on the extractor, purchased 78/79

96XXX having some issues with the anodizing coming off the lower, purchased 78/79

95xxx CM forge code upper

1978

92341 no details

921xx CARBINE, unmarked FSB, Barrel was marked C MP CHROME BORE, but has been cut to 11. 5 inches, as the piece was Class 3d and made into an XM177E2 clone in 1979. Can't give you original upper forge markings. Upper was replaced w/a big hole forward assist type some years back, and idiot me sold the smooth side upper off, 1978

90269 lone star replacement handguards

894XX forward assist cuts,

87059 Carbine, looks like a CM forge code upper, barrel marked C MP B

858xx

80142 CM forge code upper, barrel marked CHROME BORE, lower roll marked Firearms Division

1977

76728 lower roll marked Firearms Division

76xxx barrel marked CHROME BORE

74778 lower roll marked Patent Firearms, barrel marked CHROME BORE

74284 lower roll marked Patent Firearms, CM forge code upper

73175 lower roll marked Patent Firearms

70xxx lower roll marked Patent Firearms

69496 lower roll marked Patent Firearms, CM forge code, bird cage, barrel marked "C MP Chrome,
"C" marked M16 carrier with non-staked gas key (replacement?), "C" marked ejector with 4 coils spring, black insert (replacment?), "MPC" marked bolt, bobbed disconnector

69349 CM forge code upper

68862 bird cage, trap door

663XX CK forge code, Hammer has "C" in circle, a Horshoe 'U' in a square between the ejection port and barrel, 20" barrel with C MP CHROME BORE on it, 'C' under the front site, A1 Bird cage flash hider, unmarked carrier

640xx no upper forge code, C and Bell FSB, barrel marked CHROME BORE, duck bill, made in 1977

632XX no forge code, forward assist cuts, C on FSB, newer lower forging with curved reinforcment by receiver extention

62316 CK forge code upper, Front Sight Base - Unmarked, Barrel Markings - C MP CHROME BORE, Flash Hider - Birdcage, Bolt Carrier - C Mark & Forward Assist Notches, Lower Proof Stamp - Triangle w/VP Inside - Forward End Starboard Side, Buttstock - Standard w/trapdoor, Hammer - Early Style w/C in circle & 2 in circle stampings


1976

57xxx forge code upper, can't make it out

55757 no forge code, trap door fixed swivel, bird cage

51502 no upper and barrel, bolt has white extractor buffer

1975

463xx no forge code upper, C and Bell FSB, duck bill, barrel marked CHROME BORE

44885 missing roll marks SEMI, FIRE, and manufactures info, grip replaced with A2

44435 no details

44XXX C marked carrier, bird cage

43461 bird cage flash suppresor, trap door buttstock

42786 no forge code, forward assist cuts, trap door fixed swivel, bird cage, C and bell FSB, drain hole in buttstock screw

1974

37690 bird cage

349XX barrel is marked C MP B, C & bell FSB, no forge code upper

33400 no forge code, bird cage, forward assist cuts, trap door fixed swivel

32XXX lower only, no notch cut in hammer with forge codes, trap door

30XXX bird cage

1973

27834 C MP B, rivet, no forge code C & Bell

253XX barrel marked C MP B, C & bell FSB, no forge code upper, no + on lower made in 1973

25XXX lower only, notch cut in hammer with forge codes (possible swap out?), no + on lower, receiver extention not pinned on, wrong A2 grip and buttstcok

24431 1973 manufacture

2325X carrier has FA cuts, no forge code upper, C and Bell FSB?

?????? no forge code upper, barrel marked C MP B, duck bill, C carrier, and MPC bolt, this is a parts kit

219XX no forge code, Barrel marked: C MP C, Bolt marked: MPC, Extractor marked: C, FSB: C & bell,
Birdcage FH, Non trapdoor stock w/ rear swivel, A1 pistol grip

214XX Barrel marked C MP C, Bolt marked MPC, Extractor marked C, No forge code on upper, Birdcage suppressor, Trapdoor stock, 20 rnd mag

208XX no forge code, barrel marked C MP C, birdcage, carrier marked C, no markings on bolt, C and bell marked FSB, riveted swivel, hammer marked C, disconnector not marked, trigger marked with a 2 on left lower side, purchased NIB late summer of 1973

1972

176XX barrel marked: C MP C on bottom, bolt marked: MPC, no forge codes on upper, birdcage flash hider, solid buttplate, C on front sight base

17XXX no trap door, no roll pin for receiver extention

17482 barrel marked CMP C, fixed rear swivel, A1 flash hider, no upper forge code, forward assist cuts

17230 C MP C marked barrel, fixed swivel, duck bill

1971

165XX three prong, swivel buttstock, rivet on swivel

164XX bird cage flash hider, swivel buttstock, forward assist cuts, full curve 30 round mag

163xxx fixed rear swivel, birdcage replaced with three prong, black paint on lower left and front of mag well

162XX Birdcage, Plain hard rubber (?) buttplate W/drain hole top screw, black carrier "C" stamped, + on lower, ,notches in the black carrier, C MP C ubarrel, bobbed disconnector, roll pinned swivels, rubberized and black nylon sling, Came with spare Edgewater buffer & spring

1970

15271 three prong, no hole in selector, no pin on, swivel, pin on front swivel. C MP C

1969

14418 solid buttplate 1969 Three prong

14300 barrel marked c2 12, "polished" FSB, duck bill, roll pin on swivel, + on lower, made in 1969

13192 three prong, no trap door, pinned on front swivel, no roll pin for receiver extention,

13XXX duck bill

1968

12760 three prong, + on lower, MP by FSB, 12 near muzzle, roll pinned front swivel, receiver extention not pinned in, no trap door

12,XXX replacement buttstock, grip, port door, duck bill

11577 duck bill

11XXX three prong, no trap door

10859 no pin in extension, unmarked front sight base, run Together "MP" stamped on right side of barrel between the FSB legs, small "S" and "12" stamped under barrel near Flash Hider, 3 Prong Flash Hider with lock washer, raised Plus (+) on right side of lower recever near pivot pin, no divot in selector, pinned sling swivel on buttstock, front sling swivel attached with a roll pin, full circle unmarked AR carrier, "MP" marked bolt, no forward assist notches, unmarked ejector.

10095 no pin in extension, duck bill

09991 solid selector, three prong swivel, made in 1968

1967

087XX solid selector, pinned in receiver extension, + on lower receiver "polished" FSB, black Colt's sling with no buckle

1966

078xx barrel marked MP & S 12, MP marked parked bolt, parked carrier, full auto firing pin, machined firing pin retainer, hole in buttstock screw, made in 1966

071xx "polished" FSB hole in selector, parked bolt and carrier, no FA cuts in carrier, pinned in receiver extention, edgewater buffer, don't see a drain hole in buttstock screw, roll pin front swivel made in 1966

06198 no details

06081 no details

05889 & 90 hole in selector, pinned on receiver extension, + on lower receiver, does not have the holes drilled in handguard heat shields, old style gas tube, half round gas carrier key, ramped carrier without exposed firing pin, weep hole drilled for ejector spring, bolt is parked, barrel marked MP on right side inbetween FSB "legs" on right side & a 12 near the muzzle, roll pin front swivel, "polished" FSB with no drain hole for front sight, duck bill, polished FSB, shipped Oct 1966

05542 barrel marked with a 12, chrome bolt, pinned on recever extention, hole in selector, + on lower, forged FSB with no drain hole for the post, roll pinned swivel, 12 near muzzle, VP proof mark & the M is upside down, chrome bolt, parked semi carrier,

053XX pinned on recever extention, hole in selector, + on lower,


1965

05141 hole in selector, parked carrier with auto sear trip removed, round carrier key, chrome bolt, machined retainer, proof and M marked barrel, "polished" FSB, roll pin on front swivel

048xx M and proof marked barrel, chrome MP marked bolt, parked carrier, full auto firing pin, machined firing retainer, green buffer tube, no hole in buttstock screw, made in 1965

04240 chrome bolt, parked carrier, hole in selector, don’t see a hole in buttstock screw, black Colt's sling with no buckel

03909 chrome bolt, parked carrier, no firing pin catch on hammer, hole in selector

037xx new port door

03XXX pinned on receiver extention, hole in selector, + on lower,

03325 barrel M and proof mark, with S 12, plastic coated swivels, chrome MP marked bolt with weep hole for ejector
spring, parked carrier, full auto flat headed firing pin, two stakes on carrier key bolts, carrier key round, machined parked firing retainer, early port door, + on lower, hole in selector, "polished" FSB, short disconnector, made in 1965

1964

015XX Colt sling with no "buckle", parked carrier & machined firing pin retainer, carrier auto sear trip cut back, round carrier key, no firing pin catch on hammer, bolt marked MP, barrel marked M & proof & 12, + on lower, full auto flat headed firing pin, edgewater buffer, two stakes on carrier key bolts

01457 no details, made in 1964

014xx M and proof marked barrel, plastic coated swivels, chrome MP marked bolt, parked carrier, auto firing pin, machined firing retainer, green buffer tube, no hole in buttstock screw

01042 cast FSB, barrel marked M and proof early 64, and early port door, parked bolt carrier with auto trip cut back, hole in selector, edgewater buffer, round carrier key, + on lower, plastic coated swivel, long disconnector, no firing pin catch on hammer

003xx hole in take down pin. Looks like machined FSB?

00231 has old port door, transitional bolt stop & cast FSB? (this one has some miss matched parts)

00159 no details

00005 full chrome M16 bolt group, modern bolt stop, holes in selector

Post details on your SP1 and I will add it to the data base.

Oh yeah, anybody got a good serial number/year chart for the SP1?

Quoted: Oh yeah, anybody got a good serial number/year chart for the SP1?

Up to 1978:

1963 SP00001-SP00023**
1964 SP00101
1965 SP02501
1966 SP05600
1967 SP08250
1968 SP10750
1969 SP14000-SP14653
1970 SP15001-SP15473
1971 SP16001
1972 SP19401
1973 SP24201
1974 SP32601
1975 SP43801
1976 SP55301
1977 SP67651
1978 SP83400

If it helps any, my SP1's serial number is 173XXX, and it was manufactured in 1983.

Tagged for good info

1973    SP20xxx  Verified by Colt.    

Quoted: Quoted: Oh yeah, anybody got a good serial number/year chart for the SP1? Up to 1978: 1963 SP00001-SP00023** 1964 SP00101 1965 SP02501 1966 SP05600 1967 SP08250 1968 SP10750 1969 SP14000-SP14653 1970 SP15001-SP15473 1971 SP16001 1972 SP19401 1973 SP24201 1974 SP32601 1975 SP43801 1976 SP55301 1977 SP67651 1978 SP83400 If it helps any, my SP1's serial number is 173XXX, and it was manufactured in 1983.

Thanks, rifle listed, and I stuck years in there, had to take a guess where to put them though, but the data base is a work in progress.

Quoted: 1973    SP20xxx  Verified by Colt.

Got it in there.

Quoted: Tagged for good info

Was hoping you would give details on your rifle, I do have the serial number in there.

Not sure if this will help you, SP05889 and SP05890 October 17, 1966 from Colt Historian, Kathleen J. Hoyt. This is Factory ship date not sure of production date.

Quoted: Not sure if this will help you, SP05889 and SP05890 October 17, 1966 from Colt Historian, Kathleen J. Hoyt. This is Factory ship date not sure of production date.

Already have your twin rifles in there, if you get a chance some details on the rifles would be nice.

Quoted: Quoted: Not sure if this will help you, SP05889 and SP05890 October 17, 1966 from Colt Historian, Kathleen J. Hoyt. This is Factory ship date not sure of production date. Already have your twin rifles in there, if you get a chance some details on the rifles would be nice.

Sorry, I see that now. IM sent.

IM right back at ya.

my SP2 Lower is SP3475xx
looks like between 74 and 75

Quoted: my SP2 Lower is SP3475xx looks like between 74 and 75

Yours has an extra didget compared to the 1974 SP1, your rifle was made after 1985.

Quoted: Quoted: my SP2 Lower is SP3475xx looks like between 74 and 75 Yours has an extra didget compared to the 1974 SP1, your rifle was made after 1985.

whoops! thanks for the clarification, no glasses on this morning

Those number start to run together after you stare at them for awhile.

Got Henry455's twin SP1's detailed.  How about you YardDogOne, could use details on yours.

Here's mine:

#214XX
Barrel marked:  C MP C
Bolt marked:  MPC
Extractor marked:  C
No forge codes on upper
Birdcage suppressor
Trapdoor stock
20 rnd mag

Quoted: Here's mine: #214XX Barrel marked:  C MP C Bolt marked:  MPC Extractor marked:  C No forge codes on upper Birdcage suppressor Trapdoor stock 20 rnd mag

Stuck it in there, thanks.

Quoted: How about you YardDogOne, could use details on yours.

OK finally made it back here.

Colt SP1
ser. 10859

20" Rifle

Unmarked front sight base

Run Together "MP" stamped on side of barrel between the FSB legs, right side

Small "S" and run together "MP" stamped under barrel near Flash Hider

3 Prong Flash Hider with lock washer

A1 upper, no Forward assist
no forge codes
Colt triangle proof stamp forward of ejection port
standard charging handle
Raised Plus (+) on right side of lower recever near pivot pin

no divot in selector

Pinned sling swivel on buttstock
Front sling swivel attached with a roll pin

Full circle unmarked AR carrier
"MP" marked bolt
NO forward assist notches
unmarked ejector


---------------------


Colt   SP1
ser. 128949
Carbine

"C" forged front sight base
Barrel stamped "C MP Chrome Bore"
A1 Flash hider with lock washer, and the wrench flats indexed in the 90 degree vertical position
Rivited front sling swivel

CM forged A1 reciever, no forward assist
Square proof stamp forward of ejection port door
Factory staked Vinyl coated collapsable butt stock marked with an "NN" in an oval and a "1" under the latch
"C" stamped full circle AR carrier
Non shrouded firing pin
"MPC" marked bolt
Forward assist notched carrier
Ejector not marked


-------------


1977 SP1 Rifle arriving late next week

-----------------

1980 SP1 Rifle arriving late next week

Here's mine:

SP1 rifle
#176XX
Barrel marked: C MP C on bottom
Bolt marked: MPC
No forge codes on upper
Birdcage flash hider
Solid buttplate
C on front sight base
Pat
0-1-25

Good stuff, thanks guys, will add it............

Updated post, thanks guys.

One thing you might check, especially if you are going to take it apart and check for a "C" on the extractor, take a look at the extractor spring, old ones are five coil, newer ones are four coil with a buffer.  Buffers were first white, then red.  Don't think blue were used in the SP1?

YardDogOne, that is the first barrel I have heard of with two MP markings.  Normally a barrel like that would have a "12" or a "C" rather then a second MP by the flash suppresor.  Very interesting.

Quoted: Updated post, thanks guys. YardDogOne, that is the first barrel I have heard of with two MP markings.  Normally a barrel like that would have a "12" or a "C" rather then a second MP by the flash suppresor.  Very interesting.

yes very interesting, so interesting in fact I had to go back and check, says 12 not MP, as do my notes, must have lost something in the translation

sorry 'bout that

Quoted: Quoted: Updated post, thanks guys. YardDogOne, that is the first barrel I have heard of with two MP markings.  Normally a barrel like that would have a "12" or a "C" rather then a second MP by the flash suppresor.  Very interesting. yes very interesting, so interesting in fact I had to go back and check, says 12 not MP, as do my notes, must have lost something in the translation sorry 'bout that

Good, just don't need another variation in markings, thanks for checking, will edit....

Quoted: Post details on your SP1 and I will add it to the data base. Oh yeah, anybody got a good serial number/year chart for the SP1?

I have seen some inaccuracies in previous online charts.

The Colt R6001 I personally bought NIB in late Nov. 1982 was s/n SP1730xx.

Upper marked "CM" below the rear sight.

Left side roll markings:

COLT'S FIREARMS DIVISION
COLT INDUSTRIES
HARTFORD, CONN.
U.S.A.

Barrel marks:  C MP CHROME BORE
FSB:  right side, "C" near top, "bell" on lower area.

Paladin

Quoted: I have seen some inaccuracies in previous online charts. Paladin

Yep, and this one ain't right either, I just stuck the years in were they look good.  The more guys that contribute, the more accurate it will be.

Thanks for the info, yours has been added.

Found the pictures of number 5 in the archive, was anymore ever posted on it? A right side photo would have been great. I wonder if it was assembled in 1963 or 1966. I examined SP1 SP00232 at a gun show some years ago (1990’s). Gun had been sold from the factory shortly before I examined it, had a dated Colt bill of sale. It had many later SP1 parts, notched carrier, fire control, stocks etc... You may have seen SP00231 on Gunbroker.com last year, advertised with incorrect parts or were they?  Seems like Colt may have held some receivers and assembled them at a latter date. Or maybe even updated rifles that never left the factory.  An SP1 database is a great idea, I too have thought of starting one over the years. An online from would be a great way to collect data, have any ever been done here?

Quoted: Found the pictures of number 5 in the archive, was anymore ever posted on it? A right side photo would have been great. I wonder if it was assembled in 1963 or 1966.

You got the same pics I have, no right side view.  The next guy that bought it did not share any pictures publicly.  I don't think the serial number was used out of order, judging from the bolt group alone.

All the information I have points to just one SP1 built in 1963, that being GX4968.

Quoted: I examined SP1 SP00232 at a gun show some years ago (1990’s). Gun had been sold from the factory shortly before I examined it, had a dated Colt bill of sale. It had many later SP1 parts, notched carrier, fire control, stocks etc... You may have seen SP00231 on Gunbroker.com last year, advertised with incorrect parts or were they?  Seems like Colt may have held some receivers and assembled them at a latter date. Or maybe even updated rifles that never left the factory.

Yes, saw 00231 on Gunbroker, it is included in the above data base.  It did have updated parts, not sure on why.  The why is always tough, prefer to stick with what, rather then why, if you know what I mean?  GX4968 also had a bunch of parts swapped out on it, seems this happened prior to leaving the factory.

Quoted: An SP1 database is a great idea, I too have thought of starting one over the years. An online from would be a great way to collect data, have any ever been done here?

This one and your old one are the only ones I have ever seen.  Other then the serial number charts. Oh yeah, and BRII has quite a bit of SP data.

btt to keep it going

Well, lets see if I help any.
SP1
SER.SP1812XX
Large hole pivot
Slab side lower
Hammer has "C" in circle and a 6 or 9 in circle with FP cutout.
Also has the shorter disconector

M16 style upper. No FA. or BD
C  M on upper and the usual square and triangle between the ejection port and barrel

20" barrel with C MP chrome bore on it.
Front site has a "B1" in diamond
Bird cage flash hider

bolt carrier has an unshrouded FP with full circle in rear. C stamped with FA notches.
bolt has etched MPC, ejector has either 3 or 4 coils with white buffer.

When I purchased this rifle I was told by the original owner that it was a 1979. I have my doubts, but during the ban, I knew this was a pre-ban due to the slab side lower. Thats all I was looking for.

Mine has serial # SP154xxx.  That should put it at 1982 right?

I got to add these rifles, and have details on a bunch more I saved off gunbroker.  Will get to it.........

Colt SP1   20258X   Coltguard nickle finish. CM upper. Sight base has a diamond with a B inside and two smaller letters inside to the right of the B that look like a over a P an I. Bought it new in early the 80's.

Got 3 more here

SP1 Rifle
Ser # 69496
Marked "Colt's Patent Firearms Mfg Co."



Sold as all original near mint, Certianly not :(
A1 birdcage FH
barrel marked "C MP Chrome Bore"
FSB marked "C"
"C M" marked upper with proof stamps
"C" marked M16 carrier with non-staked gas key
"C" marked ejector with 4 coils spring, black insert
"MPC" marked bolt
short disconnector
pitter ejector cover from rust once upon a time

------------------------------------------------

SP1 Rifle
Serial # 121027
Marked "Colt's Firearms Division"



Well used not abused duty rifle
A1 birdcage FH
Barrel marked "C MP Chrome Bore"
FSB Marked "C"
"CM" marked reciever, no proof stamps
"C" marked full circle AR carrier
"C" marked ejector, 4 ciol spring with white insert
"MPC" marked bolt
short disconnector
Paint on mag release roll pin area on both upper and lower



------------------------------------------------------------------

SP1 rifle
serial # 106919
marked Colt's Firearms Division



A1 birdcage FH
Barrel marked "C MP Chrome Bore"
"C" marked FSB
"CM" marked upper with proof stamps
"C" marked AR carrier
"C" stamped ejector with white insert
"MPC" marked bolt
short disconnector
paint on mag release roll pin area

SP43461

Heres mine:

s/n SP 219XX
Colts Patent Firearms Mfg. Co.

Barrel marked: C  MP  C
Bolt marked:  MPC
Extractor marked: C
A1 upper: NO Forge Codes/ proof mark @ delta ring
FSB: C & bell
Birdcage FH
Non trapdoor stock w/ rear swivel
A1 pistol grip

Looks like a 1973 and is in great cond.

I hope this helps the database,

Thanks guys, added all those.

Quoted: Quoted: Oh yeah, anybody got a good serial number/year chart for the SP1? Up to 1978: 1963 SP00001-SP00023** 1964 SP00101 1965 SP02501 1966 SP05600 1967 SP08250 1968 SP10750 1969 SP14000-SP14653 1970 SP15001-SP15473 1971 SP16001 1972 SP19401 1973 SP24201 1974 SP32601 1975 SP43801 1976 SP55301 1977 SP67651 1978 SP83400 If it helps any, my SP1's serial number is 173XXX, and it was manufactured in 1983.

That chart is good. Matches the one in R.L. Wilson's Colt Heritage.

Mine is SP163xxx



Came with A1 flash suppressor; I put the 3-prong on it when I bought the rifle new.

Black paint on lower left and front of mag well. Appears to have come from factory.

Ekie,

Check out this one:www.gunbroker.com/Auction/ViewItem.asp?item=43979838

The "Colt Firearms....." and the Fire control markings are missing?

Looks like s/n 44885

I saw that one too, very interesting








Buy it now for $3500.00
Ouch

Here's the info from my baby:

SP1
SER.SP663XX
Small Front Pivot pin?(has screw heads on each side)
Slab side lower
Hammer has "C" in circle

C K on upper, below the rear sight on the carry handle
A Horshoe 'U' in a square between the ejection port and barrel

20" barrel with C MP CHROME BORE on it.
'C' under the front sit
A1 Bird cage flash hider

Can't find any markings on the bolt carrier.  From AR15.Com "Serial Numbers
List", this gun was manufactured in the 76-77 period.

I bought it at a gunshow for $1250 in 2000.

Spambo

My Info...I bought SP979xx new in either late 78' or early 79'. I have the receipt here somewhere. My brother bought one at the same time and his # is 96XXX. He is having some issues with the anodizing coming off the lower.

SP979XX
Roll Marks as above in in YardDog1's picture of serial #121027
Upper marked C M
Barrel Marked  C MP Chrome Bore
Front Site Base Marked with a C
Birdcage Flash of course
Trap Door Stock
Large Hole Screw Pivot Pin
Bolt marked MPC
Carrier marked C
No marks on the extractor


Need anything else...just ask..

Rick

My CAR-bean was made in 1980

12402X  C M Forge code below sight "C" in a square behind the delta ring

Full circle C marked bolt carrier  MPC bolt.  Don't see any mark on the extractor. White spring insert.

C mark on FSB

C MP CHROME BORE on top of bbl.  A1 FH

Metal 2 position nylon coated buttstock

Still has the paint on the buffer tube nut stakes and on the bolt stop pin.

rj

Tag Mine is already on the list.

Just happened to be cleaning the old girl.

Colt SP-1 Info

Serial Number - SP62316

Front Sight Base - Unmarked

Barrel Markings - C MP CHROME BORE

Flash Hider - Birdcage

Upper Forge Code - C K

Bolt Carrier - C Mark & Forward Assist Notches

Lower Proof Stamp - Triangle w/VP Inside - Forward End Starboard Side

Buttstock - Standard w/trapdoor

Hammer - Early Style w/C in circle & 2 in circle stampings

Will update in a few days, thanks guys.....

Oh, and keep em comming.

Michael Wayne (John Waynes son) SP1?

www.gunbroker.com/Auction/ViewItem.asp?Item=43834528

Feel free to add on of mine:

183XXX CARBINE CH forging, barrel marked C MP CHROME BORE

Colt 's Firearm Division
Colt Industries
Hartford, Conn.
       U.S.A.

CAL .223
Model SP1
SER. SP 1767XX

Upper Forging marked  C  M
Barrel marked  C MP CHROME BORE

16" Barrel    Collapsible stock
bolt carrier marked-  C

Bought it used for $395, in 1984 I think. Can't find the paper work right now.

Got all those added.

Just added 26 more SP1's from Gunbroker, Auction Arms, gunsamerica, etc....