I saw this rifle on GB, and the way the serial number looks caught my eye.  It looks a little large and double stamped. Some of the other rollmark looks pretty faint in areas.
 I know Colt has all kinds if weird things with markings and mis markings. There are other issues with this rifle, delta ring, type D stock, bcg butchered, barrel marked S MP C.  Any input or ideas?



Link to auction, Not mine

So my bet is a replacement lower. The gun itself is a hodge podge of parts so everything is not original to that gun.

The rollmarks look good to me so the only curious aspects would be the numbers. They looked hand stamped so would think it maybe the OG serial was scrapped for some reason and a new one made and shipped out.

Just my thoughts

In for the SME's

Could it be a basement creation/clone?

I am not convinced the lower is from Colt. See the lack of milling where the selector stops would have been?

This one is a tough nut to crack

The two nubs that hold the slide release in are all over the place too.

It’s a soup sandwich for sure.

I’d like to see inside. It almost looks like a painted reweld or something. Check out the ears for the bolt stop.

You SMEs are amazing. So informative.

Here is the auction

It’s got a lot Not going for it.

Bolt release doesn't look right either.

Virtually nothing on this rifle looks right. Looks like a Khyber Pass SP1.

Shell deflector, forward assist, A2 grip, furniture that doesn’t match condition of the rifle or isn’t correct for the time period.  Yeah, total soup sandwich there,

Edit to add barrel looks refinished, bolt carrier looks like an M16 carrier that was modified by an amateur.  The more I look at the pics the worse it gets.

That BCG is a shit show…  Colt generally either cut the whole bottom off (half-moon style) or machined the SP1 bolts with a shorter tail.  Looks like someone with ADHD took an angle grinder to that.

The serial number doesn’t bother me… why fake a serial number to the mid-70’s?  It’s not like that’s particularly desirable compared to any other years.  Plus the Colt roll mark looks nice… You’re telling me you can lay down an actual pressed Colt roll mark and then you’re gonna flub the serial number? That doesn’t make sense either.

The no bolt stop pads is weird.  I’m thinking it’s either a reweld and/or been refinished with overzealous buffing/blasting.

The rest of the parts and barrel look clapped out AF, too.

I have a ~1976 serial number all original minty SP1 (my late uncle was the original owner) and that rifle looks like shit compared to mine.  Let me know if you want any particular detailed comparison pics of mine.

Frankenstein AR for sure…
But while weird the SN seems legit… Colt is knows for weird stuff… maybe the SN tooling was broken that day and they had to add it manually.


I’d call Colt and ask if the SN belongs to an actual SP1

The barrel is a refinished piece of shit.  It’s had a squib or obstruction and is rung.  It’s some jagoff’s junk parts project fo sure, lol!

What I’m seeing:
The barrel has been refinished as evidenced by the markings being slightly obliterated.

Most of the markings on the lower are rollmarked. You can see the deformation of aluminum at the edges of the marks and there is a characteristic faint/incomplete roll mark over the fcg. The exceptions are the serial number and safe marking.

The serial number looks overstamped, the font is incorrect and too large, and the receiver looks to have been spot refinished in the area of the serial number. The safe marking looks engraved, but aggressive abrasive blasting during refinish could have removed some of the aluminum displaced during rollmarking.

The forging contours and milling look correct, with exception of the typical evidence of milled down selector stop. Again, aggressive abrasive blasting during refinish could have removed these if they were faint.

The support bosses for the bolt catch, aka “ears”…the anterior one had a portion fracture off.


The bolt group is a fullauto that had the tail ground off at an angle. It is not factory correct for a SP1 or Sporter II.

The upper is incorrect for a 1975 rifle, as it’s a C7 and would have been found on a Sporter II.

Looking critically at the lower, I think it’s a factory Colt lower that has been refinished and painted in Norrells colt gray Molycoat. The texture and sheen don’t match the anodizing of the upper. I bet the bolt catch ear was broken at the time of reassembly after refinish. And refinish would explain some of the marking discrepancies. I bet the serial number was faintly struck at the factory and was blasted mostly off during refinish, then hand stamped to reapply it.

And the lower was mated to a not period correct hodgepodge of Colt parts in the upper.

Personally, I’d run far away.

Thank you.  I'm surprised it's over 900.

$900 with a week left? That's crazy.

The ONLY decent parts on that thing are the C7 Upper, the grip, and maybe the LPK and maybe the receiver extension.

Price doesn’t surprise me, it’ll probably fetch $1,500+. Most people don’t know what they’re looking at. Carry handle + triangle HGs + Colt lower = ViAtNaM.

Spot on.

I wonder about the S MP C barrel. Could that be one of the "S" marked SP1 barrels from the MPC barrel era? I know we've seen an S marked CMPC barrel.

SAKO replacement m16 barrel

Any preban serial number/lower is worth lots of money in a pathetic ban state where legal, so there’s an incentive to manufacture counterfeits for a fraction of the market price. It’s bad enough we already have neckbeards running around buying retro Colts just to dismantle them, then flip individual pieces/lowers to ban states, and now this.

Isn't there only 1 state left where that still matters? I think the rest of them already had deadlines where it had to be in the state and/or registered.

While that's true, it's still easy money for someone who has the skills to make convincing markings and color/finish. For the cost of a $70-100 80% lower and whatever they value their time/materials/labor, it's an easy $1000 as long as there is a state where that's legal.

Plus they could also opt to make counterfeit complete rifles to take advantage of the retro craze, given how many parted out SP1/Sporter uppers are floating around at relatively affordable prices. So pretty easy to cobble together a gun with real Colt parts and a fake lower, and they'd still double their money.

I am pretty sure that that original roll marked serial number is still partly noticeable. Study the first pic.

Definitely.

I don’t believe this is a counterfeit. I believe it appears to be a legit SP1 lower that was likely faintly rollmarked in the serial number and SAFE, was refinished and the media blasting removed some markings which were reapplied, and the lower was refinished. The bolt catch support boss was likely broken when the lower was reassembled after refinish.

Or it could've had a serial number that was reported stolen so somebody might've changed it. Too many unknowns for me to bid on something like that, personally.

Also see 26 USC 5861(h)
(Usually there's a state law prohibiting this too.)

I completely agree.

I wouldn't pay $500.00 for that atrocity....

Almost $1600 with 30hrs to go...

I didn't even pay that much for this all original 1976 less than 3 years ago with it's colt baseplate mags and silent sling and box.  Real minty - light use.  I detail stripped it and cleaned it and put it back together and it's in the back of the safe.  Haven't fired it myself and one of my sons will probably get it someday in the same condition.

So…whatever happened to this one?  I never checked up on it, lol!

final price was $clicktheauctionlinkyourselfandquitbeinglazy

Nope