AR Pistol Build

[TheBelly]

My new AR pistol build is complete. It's fan-effin-tastic!!

here it is with a 16" carbine below it.



yay for the Sig Tac arm brace!

[TheBelly]

Lower Receiver:

Sig Tac SB15 arm brace
Spikes pistol buffer tube
Sprinco 'red' spring
H6 Buffer
Magpul MIAD grip
CMMG LPK
Anderson Man. Lower receiver

[DEAGLER]

Looks good! Are those sig brace adjustable?

[TheBelly]

Upper Receiver

Colt receiver
Rainier Arms parts kit
Rainier Arms BCG
Rainier Arms Match Barrel (10.5", carbine length gas, .223 Wylde chamber, 1/8 twist, Shilen blank)
Carbon Arms gas block
carbine gas tube
VTAC 9" hand guard
Aimpoint H-1 on a Daniel Defense lower 1/3 co-witness mount
Gemtech Trek suppressor

[TheBelly]

Looks good! Are those sig brace adjustable?

For length, it can be pushed farther onto the tube.

its meant for a 1.0-1.1" tube, and mine is about 1.2". it's a snug fit.

[TheBelly]

Tomorrow I'm going to a range where I can get some quality time seeing what it can do at distance. Just imagine if this thing can still hold MOA performance at 100!!

[TheBelly]

The build process was straight forward.

The CMMG lpk was packaged into color coded bags. I never got the instructions figured out, and I knew what went where, so I just started assembling the lower. The only trickey part is when it comes to screwing on the buffer tube and keeping the end plate away from the rear take down detent spring. If you're not entirely sure of how that part goes, you WILL find out the sound that spring makes when it shoots across a room. (It sounds like, "Fffffffuuuuuuuuuuuu..............!!!!!!!!!")

[Tim K]

Tap the hole for #4-40. Shorten the spring and install a set screw. Problem solved.

[TheBelly]

Here's the price-list for this build:

AR Pistol Build


Barrel: $199.95
Rail: $156.75
Barrel Nut: $7.95
BCG: 113.96
Upper Parts Kit: $22.00
Gas Block: $70
Gas Tube: $10
Muzzle Device: already on hand
Upper Receiver: already on hand


Upper Total: $580.61


Lower Receiver: $80
Lower Parts Kit: $55
Receiver Extension: $35
Buffer And spring: already on hand
Arm Brace: $145


Lower Total: $315


Total Cost: $895.61

[4runner freak]

The only trickey part is when it comes to screwing on the buffer tube and keeping the end plate away from the rear take down detent spring. If you're not entirely sure of how that part goes, you WILL find out the sound that spring makes when it shoots across a room. (It sounds like, "Fffffffuuuuuuuuuuuu..............!!!!!!!!!")

Tap the hole for #4-40. Shorten the spring and install a set screw. Problem solved.

If you go this route, let me know.
I did this on mine and bought a bag of 100 set screws, so I have a few extra