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Armaspec
Armaspec SRS-BB Buffer Tube Kit Black AR-15 GEN4 - ARM263-BB
✓ In stock
MSRP: $120.99$104.81 -
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Battle Arms Development
Battle Arms Development Adjustable Tactical Grip Black - BAD-ATG-BLK
✓ In stock
$37.00 -
Bravo Company
BCM KMR Alpha RL 556 17" Black KM Handguard - BCM-KMR-A17-556-BLK
✓ In stock
MSRP: $275.00$195.74 -
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Bravo Company
BCM Gunfighter KeyMod Nylon 4" Black Handguard - BCM-KMR-1913-N4-BLK
✓ In stock
$23.28 -
TRUE PRECISION INC
True Precision Spectrum Drop-In Flat Fits Sig P365 Trigger - TPP365TS
✓ In stock
$91.56 -
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True Precision
True Precision P365 Fuse Ticn CPR TB Barrel - TP-P365FB-XTC
✓ In stock
MSRP: $199.99$171.82 -
Yankee Hill Machine Co
Yankee Hill Machine Phantom Compensator/Flash Hider .308 5/8x24 Threads - YHM-3080-5C2
✓ In stock
MSRP: $64.95$60.25 -
TYRANT CNC
Tyrant CNC Magwell Fits Glock 43x/48 Black 6061 Aluminum - TD-G48MW-Black
✓ In stock
MSRP: $79.95$79.53 -
True Precision
True Precision Compensator P365/x/XL/Mac Silver - TP-P365MUC-SS
✓ In stock
MSRP: $129.99$109.89 -
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Patriot Ordnance Factory
Patriot Ordnance Factory Drop-In Black/Red Curved Trigger Two-Stage - 01509
✓ In stock
MSRP: $198.00$171.77 -
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Mission First Tactical
Mission First Tactical Engage AR15/M16 Pistol Grip Black - EPG16V2
✓ In stock
$26.96 -
Leapers, Inc. - UTG
Leapers, Inc. - UTG AR-15 Cmbt Snpr Pistol Grip Black - RB-TPG172B
✓ In stock
$30.90
Gun Parts
Upgrade, repair or build with barrels, triggers, stocks, grips, handguards, muzzle devices and replacement parts. We list over 14,800 gun parts from Magpul, Hogue and Strike.
Getting the right fit
Fit is everything with gun parts. Match the exact make, model and generation of your firearm, since a Glock 19 Gen 3 and Gen 5 do not share every part, and AR-15 parts can differ between mil-spec and commercial dimensions.
Barrels and muzzle devices also need the right thread pitch. For triggers and internal parts, a qualified gunsmith install is the safest route if you are not comfortable doing it yourself.
Gun Parts FAQ
How do I know a part fits my gun?
Check the product title and specifications for your exact model and generation. If a listing covers a range of models, confirm yours is on the list before ordering.
What thread pitch do I need for a muzzle device?
Check your barrel. Most 5.56 and 9mm barrels use 1/2x28 and most .30 caliber barrels use 5/8x24, but confirm the thread on your barrel or in your owner's manual before you order.
Shop related: AR-15 Parts · Magazines · Scope Mounts & Rings · Gun Care