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 AR10 parts compatibility with AR15
mikebussy3334  [Member]
9/3/2007 1:35:51 AM
I'm thinking about building an ar10. What parts are the same? Can i use an ar15 stock and do i need a different buffer and spring? also what about grips and rails? What about detachable sights?
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Slash  [Dealer]
9/3/2007 11:27:52 PM
All lower receiver parts are interchangable except for:
Takedown pin (EA1113)
Pivot pin (EA1112)
Magazine catch (EA1108)
Bolt stop (10203100)

It is generally cheaper to buy an AR10 lower parts kit (EA6010) than to buy an AR15 LPK plus the proprietary AR10 parts.

To install a rifle length stock, you need an AR10 rifle buffer (EA1090) and AR10 operating spring (EA1095).
To install an AR15 carbine length stock, you'll need a CAR-10 Buffer and an AR10 operating spring (EA1095).

AR10s accept AR15 pistol grips.

AR15 rails will not work on AR10s.
Art at www.SuperiorWeaponsSystems.com makes the best AR10 rails on the market. The E1 is lighter and stronger than any other I've seen.

You can use any AR15 rear BUIS.
If you use a gas block mounted front BUIS, you'll probably need a taller front sight pin.
If you use a rail mounted front BUIS it will work fine.


TaylorWSO  [Team Member]
9/4/2007 3:36:06 PM
An AR15 mag catch "can" be used but it won't engage all the threads on the push button.

Just buy the AR10 kit
mrraley  [Team Member]
9/4/2007 4:05:55 PM
M-15 Lower Half Parts
1 *Pistol grip, black EL0030 $5.00
1 *Pistol grip, green EG0050 $6.00
*Pistol grip screw EL0010 $1.00
*Pistol grip screw washer EL0020 $.50
Pistol Grip Kit includes grip, screw and washer
Black EMK020 $6.50 Green EMK020G $7.50
2 *Ejector/Safety spring (2 per rifle) EB0110 $.75
3 *Safety detent EL0060 $1.00
4 *Buttstock screw (A2) EL0090 $3.00
5 *Buttstock Assembly (A2), black EL0110 $35.00
5 *Buttstock Assembly (A2), green EG0020 $40.00
*Rear sling swivel EL0120 $3.00
*Rear sling swivel screw EL0122 $3.00
6 *Buttstock spacer EL0130 $1.50
A2 Buttstock Kit includes buttstock, screw,
spacer, buffer, buffer spring, receiver extension
Black EMK017 $65.00 Green EMK017G $70.00
7 *Detent spring (2 per rifle) EL0140 $.75
8 *Detent (2 per rifle) EL0150 $.75
9 Take down pin EL0160 $5.00
10 Pivot pin EL0170 $5.00
11 Buffer EL0180 $14.00
12 Buffer spring EL0210 $2.50
13 *Bolt stop pin EL0220 $.50
14 Bolt stop EL0230 $8.00
15 *Bolt stop plunger EL0240 $1.25
16 *Bolt stop spring EL0250 $.75
17 Mag catch EL0260 $6.00
18 *Mag catch button (aluminum) EL0270 $3.75
19 Mag catch spring EL0280 $.75
20 * Safety selector EL0290 $10.00
21 * Rifle receiver extension EL0370 $20.50
22 * Disconnector EL0330 $6.00
23 * Disconnector spring EL0340 $.75
24 * Standard Trigger EL0350 $15.00
25 * Trigger spring EL0360 $1.50
26 Hammer EL0310 $22.00
27 * Hammer spring EL0320 $1.50
28 * Hammer and trigger pin EL0300 $1.25
29 * Trigger guard pin EL0430 $.35
30 * Trigger guard assembly EL0380 $8.00
31 * Buffer detent EL0190 $1.00
32 * Buffer detent spring EL0200 $1.00
Offset Pin (GI upper to large pin lower) EX0200 $5.00
Offset Bushing (Large pin upper to GI lower) EX0201 $5.00
Standard Trigger Group EMK005 $35.00
* INDICATES PARTS USEABLE ON AR-10/.308

AR-10 Lower Half Parts
9 Takedown pin, AR-10 EA1113 $ 6.00
Oversize Takedown pin EA5101 $ 10.00
10 Pivot pin, AR-10 EA1112 $ 6.00
Oversize Pivot pin EA5100 $ 10.00
11 Buffer, AR-10 EA1090 $ 18.00
12 Operating spring, AR-10 EA1095 $ 6.00
13 Bolt stop pin, AR-10 EL0220 $ .50
14 Bolt stop, AR-10 EA1100 $ 16.00
17 Magazine catch, AR-10 EA1108 $ 12.00
18 Magazine catch button, AR-10 EL0270 $ 3.75
26 Hammer, AR-10 EA1111 $ 22.00
Trip, bolt catch, AR-10 EA5092 $ 3.00
27 J-Spring EL0311 $ 2.00

EA6010 or (EA6010G for green)
$95.00 EA

AR10 LOWER RECEIVER PARTS KIT W/ STANDARD TRIGGER, BLACK

1913 Handguard

No special fitting required! This aluminum
handguard system has 4 Picatinny rails and
replaces the handguards on the A2 & A4 rifles.
ArmaLite’s is a 2-piece unit which means you
get the best of both worlds, no disassembly of
your rifle, just replace the handguards & you’re
ready to go! ArmaLites work on both .223 & .308 rifles.

MIL STD 1913 Handguard

Rifle 10705110KIT $190.00

Mid-length Carbine 8" 10705111KIT $190.00

Carbine 6" 10705112KIT $190.00

All of this was either taken off of the web site or coppied from catalog #10 that I down loaded from the old site. Hope some of this helps.

Pat
mikebussy3334  [Member]
9/4/2007 8:56:29 PM
Wow, Thanks a lot guys
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