Builders Bin

Standard Castle Nut for Receiver Extension

Code: Castle Nut

$5.00

+ −

Standard Carbine Buffer

Code: Buffer-Carbine

$13.00

+ −

Low Profile Gas Block (Clamp Screw)

Code: Gas Block - Lo Pro Clamp

$34.99

Out-of-stock

AR15 Ejection Port Cover (SurpriseAsshole)

Code: EPC-SURPRISE

$15.00

+ −

Bolt Catch Plunger/ Rollpin/ Spring

Code: Bolt Catch Spring Kit

$5.00

+ −

Pistol Length Gas Tube (with roll pin)

Code: Gas Tube - Pistol

$13.99

+ −

AR15 Lower Receiver Parts Kit

Code: LPK-AR15

$75.00

+ −

AR15 Builders Lower Parts Kit

Code: Builders Bin LPK

$49.99

+ −

AR15 Crush Washer (1/2")

Code: Crush Washer AR15

$1.75

+ −

Buffer Retainer Cap and Spring

Code: Buffer Retainer Kit

$4.00

+ −

AR15/M16 Pigtail Gas Tube (Pistol Length)

Code: PIGTAIL

$65.00

+ −

Safety Selector Spring and Detent

Code: Selector Spring Kit

$4.00

+ −

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