Upper Receivers & Conversion Kits
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Sharps 365 X Macro Pistol Kit Blk
Sharps Bros.
$1,121.76Featuring superior Sharps Bros, Craftsmanship, the 365 Improved X Macro Pistol kit will elevate your Sig Sauer P365. With its solid aluminum frame, ported barrel and slide, integrated compensator, and ergonomic slide serrations, all you need to do is...$1,121.76 -
Rra Cmplt Car A4 Upr 350lgd 16" 10rd
Rock River Arms
$702.38Rock River Arms A4 Carbine upper comes chambered in .350 Legend with a 16" chrome moly 1/16 twist barrel. Additionally this upper includes a RRA 13" M-Lok compatible lightweight free float rail and a RRA Operator Brake (1/2-36 thread). This is a complete...$702.38 -
Rra Cmp Coyote Car A4 Upr 300blk 16
Rock River Arms
$779.64Rock River Arms A4 Coyote Carbine upper comes chambered in .300 AAC / Blackout with a 16" chrome moly 1/8twist barrel. Additionally this upper includes a RRA 12.5" M-Lok compatible lightweight free float rail and a Smith Vortex flash hider (5/8-24...$779.64 -
Rra Cmplt Mid A4 Upr 450bm 16" 5rd
Rock River Arms
$716.43Rock River Arms A4 mid-length upper comes chambered in .450 Bushmaster with a 16" chrome moly 1/24 twist barrel. Additionally this upper includes a RRA 13" M-Lok compatible lightweight free float rail and a RRA Operator Brake (5/8-32 thread). This is a...$716.43 -
Rra Cmplt Car A4 Upr 458 Socom 16
Rock River Arms
$751.54Rock River Arms complete Tactical Carbine upper is an A4 upper chambered in .458 SOCOM with a 16" chrome moly bull barrel and 1:14 twist. Additionally the upper comes with a complete bolt carrier group, charging handle assembly, 15" RRA lightweight M-Lok...$751.54 -
Lantac Reacon Upper 223 Wylde 16
LanTac USA LLC
$1,110.24Lantac Usa Llc Sf15 Reacon, Complete Upper Receiver, 223 Wylde, 16" Barrel, Fits Ar15, Anodized Finish, Black 01-fa-223-recon-uprModel: ReaconFinish/Color: AnodizedFit: AR-15Caliber: 223 Wylde$1,110.24 -
Bad 16 Uppr Wrkhorse 556 Ambi Blk
Battle Arms Development
$692.71The WORKHORSE complete upper receiver is purpose-built around the forged WORKHORSE 7075-T6 aircraft-grade aluminum receiver and free-float rail handguard with M-LOK attachment point at 3" 6" and 9 oclock positions. At 12 oclock is a full-length Picatinny...$692.71 -
Spike's 556nato Upper 16" Chf/fsp
Spike's Tactical
$590.04Spikes complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. Spikes maintains the same high standard of tolerances and attention to detail as the uppers they use for complete rifle builds. Every built upper...$590.04 -
Spike's 556nato M4 Le Upper W/rail
Spike's Tactical
$689.64Spikes complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. Spikes maintains the same high standard of tolerances and attention to detail as the uppers they use for complete rifle builds. Every built upper...$689.64 -
Dd M4v7 Lw Upper 556 16" Mlok Blk
Daniel Defense
$1,117.46The Daniel Defense M4 V7 LW Upper Receiver Group is built around a Cold Hammer Forged 16" Lightweight profile barrel-which is two ounces less than a standard V7 barrel-and equipped with a DD improved Flash Suppressor to reduce flash signature. It...$1,117.46 -
Dd M4v7 Upper 556 16" Mlok Blk
Daniel Defense
$1,117.46The Daniel Defense M4 V7 Upper Receiver Group is built around a Cold Hammer Forged 16" Government profile barrel and equipped with a DD improved Flash Suppressor to reduce flash signature. It features a mid-length gas system for smooth, reliable cycling...$1,117.46 -
Fn Scar Nrch Cnvrsn For Scar 17s/20s
FN America
$870.84The Non-Reciprocating Charging Handle (NRCH) assembly upgrade kit gives current FN SCAR Owners even more adaptability and modularity for their rifles with new, nonreciprocating, dual charging handles, enabling any shooting position, grip style or optic...$870.84