AR-15 Parts
Shop our extensive inventory of AR-15 parts and modern sporting rifle (MSR) components. From fully assembled MIL-SPEC upper receivers and enhanced lower parts kits to free-float M-LOK handguards and ambidextrous controls, we carry the critical components required for duty, defense, and custom builds.
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Out of stock
Troy - Gas Block .875" Black - #SGAS-875-00BT-00
Troy
$45.00Troy's .875 Low Profile Gas Block is made specifically for bull barrel rifles that have a 0.875 gas block seat. Machined from 4140 pre-hardened steel finished with MIL-STD Manganese Phosphate. Gas...$45.00 -
Out of stockOn Sale
Ergo - .750 Low-Pro Adjustable Gas Block - #4822
Ergo Grip
Now: $43.25Was: $51.99The Ergo 4822 .750 Adjustable Gas Block is designed to fit under the Ergo Modular and SuperLite™ Rail System, as well as most other manufacturer’s free float handguards. Adjustments are made via a...Now: $43.25Was: $51.99 -
Out of stock
Gemtech - Complete Upper Receiver 5.56NATO 16.1" - 13833
$839.00Introducing the new GVAC system from Gemtech. Significantly reduce the amount of gas blowback you'll experience wwhen shooting suppressed with its patented design. The re-imagined barrel profile,...$839.00 -
Out of stock
Sig Sauer - X-change kit P320 to M17 9mm - 8900268
Sig Sauer
$549.99This kit converts a P320 to a non-manual safety version of the renowned M18. This M17 conversion kit comes in the 3.9" configuration with 1 17 round magazine and 2 21 round magazines. UPC<$549.99 -
Out of stock
Colt - Complete Upper 223 Rem/556NATO 16" - LE6920EPR-CK
Colt
$1,049.00The durability, reliability and excellent build quality of Colt uppers will provide years of service you can count on. Chambered in 223Rem/5.56NATO featuring a 16" barrel and a MLOK free float...$1,049.00 -
Out of stockOn Sale
CMC - Lower Parts Kit for AR-15 - 81503
CMC Triggers
Now: $224.10Was: $249.00Enhanced with a 3.5lb Single Stage Flat Trigger, this kit is a great addition to your AR15 build. From amateur gun builder to seasoned expert gun smith, this lower parts kit is for you. NOTE: Grip...Now: $224.10Was: $249.00 -
Out of stockOn Sale
Rise Armament - Rave Lower Parts Kit w/ Trigger - T017-12003
Rise Armament
Now: $139.99Was: $180.00UPC 850011713174 Manufacturer Rise Armament Manufacturer Part # T017-12003Now: $139.99Was: $180.00 -
Out of stock
Knight's Armament - 4 Rib Rail Panel - Black - 97166
Knights Armament Company
$28.15The Knight's Armament 4-Rib Rail Panel — Black (KAC PN: 97166) is KAC's 4-rib polymer panel for covering unused Picatinny rail slots on KAC RAS and other quad-rail handguards. The 4-rib design covers...$28.15 -
LMT Defense - Tactical Charging Handle Assembly - .308 - #LM308CA
LMT Defense
MSRP: $130.00$123.30The Lewis Machine and Tool Tactical AR-10 charging handle makes charging your weapon much easier in stressful situations or when you simply want to go faster. The large tactical latch is easy to grab...MSRP: $130.00$123.30 -
Out of stockOn Sale
LMT Defense - 5.56 lower parts kit w/trigger - LM556LPK
LMT Defense
Now: $313.20Was: $322.65Complete your build with only the best lower parts kit available. This is the same kit that LMT’s world famous weapons are built with so why wouldn’t you want it in your rifle? 100% American...Now: $313.20Was: $322.65 -
LMT Defense - MWS .308 M-LOK Upper Receiver - 15.3" - LM308BML4A
LMT Defense
MSRP: $1,525.00$1,413.90The LMT Defense MWS .308 M-LOK Upper Receiver 15.3" (LM308BML4A) is LMT's extended large-caliber MRP-H monolithic upper receiver, offering an additional 3 inches of handguard length over the standard...MSRP: $1,525.00$1,413.90 -
Out of stock
Spuhr - Forend MP5/HK53 -R-301
Spuhr
$246.00Lightweight slim profile aluminum forend for MP5/HK53 and clones. Made from single billet of 7075 T651. Includes one A-0002 Picatinny Rail as well as two set screws to take up any play between...$246.00