AR-15 / AR-10 Parts
Looking for the best AR platform parts on the Internet? You're here. Take a look and let's get to work.
We build AR platform rifles weekly for some very discerning customers. We only build with what we sell, and we only sell what works. Leverage our experience in building or upgrading your AR platform and buy with confidence.
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Out of Stock
Heckler & Koch HK416 11" Handguard Black
Heckler & Koch
MSRP: $419.00$399.00HK416 11" HANDGUARD MR556A1/HK416 extended picatinny handguard. The 11-inch rail allows for longer sight radius and more rail space. Rifles come factory standard with 9 inch picatinny rail.MSRP: $419.00$399.00 -
Out of Stock
PWS - MK109 MOD 2-M 300 Blk Upper Receiver 9.75" 1:8" Twist w/ Triad Muzzle Device
Primary Weapons Systems
MSRP: $1,349.95$1,299.95Primary Weapons Systems, MK109, MOD 2-M, Upper Receiver, Fits AR-15, 300 Blackout, 9.75" Barrel, 1:8" Twist, PWS Triad Muzzle Device, 8.9" PWS PicLok MLOK Handguard, Anodized Finish, Black, Includes Radian Raptor Ambidextrous Charging Handle The PWS MK1...MSRP: $1,349.95$1,299.95 -
Out of Stock
PRI - Douglas 5.56 Stainless Steel Barrel 18" - 1-7 Twist
Precision Reflex, Inc
$489.00PRI – Douglas 5.56 Stainless Steel Barrel 18" – 1-7 Twist (05-556-18D-7) Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps. Barrel is a medium SPR profiled barrel, threaded with a 1/2-28...$489.00 -
Out of Stock
PRI Douglas 5.56 Stainless Steel Barrel 18" 1-8 Twist
Precision Reflex, Inc
$489.00PRI - Douglas 5.56 Stainless Steel Barrel 18" - 1-8 Twist ( 05-556-18D) Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-8 twist and M4 feed ramps. Barrel is a medium SPR profiled barrel, threaded with a 1/2-28 thread for...$489.00 -
Out of Stock
PRI - 308 Gas Buster® Charging Handle - Military Latch - FDE Finish
Precision Reflex, Inc
$92.50PRI – 308 Gas Buster® Charging Handle – Military Latch - FDE Finish SR25 Charging Handle with Big Military Latch for the family of 308 AR's Armalite, DPMS, KAC - M-84L Gas Buster® charging handle – featuring the big latch...$92.50 -
Out of Stock
SOLGW Loyal 9 Stripped Lower Receiver - Black
Sons Of Liberty Gun Works
MSRP: $150.00$142.50SOLGW Loyal 9 Stripped Lower Receiver - Black The Sons of Liberty Gun Works Loyal 9 Stripped Lower Receiver is built for shooters who demand uncompromising quality, precision machining, and true duty‑grade durability. Crafted from mil‑spec 7075‑T6...MSRP: $150.00$142.50 -
Out of Stock
OCL - M4 Collar, Raw Heat Treat
Otter Creek Labs
$45.00Otter Creek Labs - M4 Collar, Raw Heat Treat Locating collar for M4 spec barrels and ops inc 12th model, AEM5 and OCM5. Made from H900 heat treated 17-4 steel with a raw heat treat finish.$45.00 -
Out of Stock
LMT® - .308 receiver extension tube
LMT Defense
$59.00LMT® .308 receiver extension tubeLMT offers its 308 receiver extension, or buffer tube, for sale to customers for their builds. This tube is approx. 3/4″ longer than a standard AR-15 style buffer tube. This allows for usage of standard length...$59.00 -
Out of Stock
LMT - MRP/AR15 Buffer Tube Kit
LMT Defense
$97.00LMT DEFENSE - MRP/AR15 Buffer Tube Kit LMT kept our builders in mind with this essential kit for your next project. The LM556BTK is ready to install in your stripped lower. Kit ships with a dry film lubed, Mil-Spec 6 position tube, standard buffer...$97.00 -
Out of Stock
LMT - 5.56 Receiver Extension (Buffer Tube)
LMT Defense
$49.005.56 EXTENSION TUBE NSN: 1010-01-611-4106 Milspec 5.56 receiver extension LMT Defense has a great option for those building their own MSR. Our milspec receiver extensions, or buffer tubes exceed the quality standards of others in the industry. We time...$49.00 -
Out of Stock
Timney Triggers - Single-Stage Straight Trigger with 4.5 lbs Draw Weight, Black Finish, Sig MPX
Timney Triggers
MSRP: $338.60$210.99Timney Triggers 683 Replacement Trigger Single-Stage Straight Trigger with 4.50 lbs Draw Weight & Black Finish for Sig MPX Timney is the market leader for Sig replacement rifle triggers. This single-stage trigger is factory tuned for 4.5 lb...MSRP: $338.60$210.99 -
Out of Stock
Timney Triggers - DH3 Daniel Horner Signature, Single-Stage Straight Trigger with 1-3 lbs Draw Weight, Anodized, AR-15 , Sig MPX, Sig MCX
Timney Triggers
MSRP: $352.99$317.99Timney Triggers DH3 Daniel Horner Signature Single-Stage Straight Trigger with 1-3 lbs Draw Weight & Anodized Finish for AR-15 for Sig MPX for Sig MCX Daniel Horner and Timney’s engineers set out to create not only the ultimate AR-style...MSRP: $352.99$317.99