Upper Parts

R2S (HT) 17-4 PH Atlas and Atlas XL compatible Plan B compatible H900 Wheat Finish (Variations exist) Shims not included, if you would like to specifically time this, shims will be required. Note: your barrel may require a shim if the...

6.5 Grendel | 18" Intermediate | Barrel w/ BCG All DI barrels include stainless steel tunable gas block. Features Profile: DMR Heavy Profile (.850 behind gas block, .745 in front) Length: 18” Gas Placement: Intermediate Rifling: Button 8...

The Black River Tactical MarkBlue Gas Tube is a premium quality gas tube used exclusively with the BRT EXC length gas system. The BRT EXC gas system was created to provide OPTIMUM performance from 12.5" 5.56 barrels and is excellent for dedicated...

The POF Roller Cam Pin reduces friction and drag of the bolt carrier. The roller cam pin rolls as the action moves. The roller cam pin is NP3 coated and the body is Milspec hard chrome plated. This allows the pin to operate without lube. This can be...

The TRIARC Systems TRACK 2.0 Rifle Barrel Kit features a 13.9" TRACK 2.0 Barrel that is optimized for the TRIARC Systems Mil-spec buffer tube, H1 Buffer and Sprinco Blue Buffer Spring. Also included is a Mil-Spec End Plate and Castle Nut. Together, these...

TRIARC Systems TRACK™ 2.0 - 6.5 Grendel 12.5" Barrel Overview: Introducing the advanced TRACK™ 2.0 barrel by TRIARC Systems. The unique Single Edge Polygonal (SEP) rifling, exclusive to TRIARC, offers shooters the best of both standard and...

TRIARC Systems TRACK™ 2.0 - 6.5 Grendel 16" Barrel Overview: Introducing the advanced TRACK™ 2.0 barrel by TRIARC Systems. The unique Single Edge Polygonal (SEP) rifling, exclusive to TRIARC, offers shooters the best of both standard and...

Douglas 5.56 Stainless Steel Barrel 18" - 1/7 twist Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps.  Barrel is medium SPR profiled barrel, threaded with a 1/2-28 thread for the AE  brakes and...

Sig Sauer - MCX Deflector Assembly Forward Assist - Black Factory replacement deflector assembly and forward assist in Black for the SIG MCX Installation of these parts kits require disassembly of your firearm beyond a “field-stripped”...

HUXWRX 9MM 3-Lug Mount - 1/2x28 Compatible with all 3-lug mounting systems, our 3-lug mount is easy to install, and utilizes helical grooves to almost completely prevent carbon lock.

Noveske Gen 4 precision machined billet receiver from 7075-T6 aluminum Direct blow-back operation only Hardcoat type III anodized Featuring anti-rotation interface with handguard Picatinny mil-standard 1913 top rail with Noveske Cross This...

The A3 Upper Receiver Parts Kit for AR-15 includes the ejection port cover, ejection port rod, ejection port C-clip, ejection port spring, forward assist button, forward assist spring and forward assist pin. Luth-AR, A3 Upper Receiver Parts...