Upper

ATI AR15 Multiple Caliber Stripped Metal Reinforced Polymer Upper Receiver

…standard mil-spec parts Multi-Caliber: 5.56mm, 300BLK, 22LR, 6.8 SPC and others Material: Polymer w/Insert Patented Metal-reinforced polymer upper receiver Lightweight with durability of a forged aluminum upper Metal insert to reinforce critical areas of the upper Only 1/2 a pound! (7 ounces)

Wilson Combat Complete Upper Assembly 5.56 NATO Recon SR Tactical 14.7 in. 1-8 Twist

…AR Upper Receiver Units use the same top tier components, skilled gunsmith assembly and final finishing as our prized custom AR rifles that we have expertly built since 1999. The Wilson Combat machined, hand polished, match grade stainless barrel is the core of these accurate and reliable upper…

Bushmaster XM-15 Complete Upper w/Bolt 5.56 Predator ORC 20 Fluted Barrel 1x8 Post-Ban

Vented, free-floating fore-end and scope risers on a Flat-Top upper, 11" competition muzzle crown and milled gas block, fluted, extra heavy, non-chrome-lined 20" barrel with 1 in 8" twist

Bravo Company Upper Receiver Assembly Mil-Spec 1913 Rail for Mounting Optics and Accessories Flat Top Black BCM4-UR-M4

BCM M4 Upper Receiver Assembly (w/ Laser T-Markings) - Built to the correct Mil-Specs. NOTE: (Inside Diameter for barrel extension slightly undersized for a tighter fit to the barrel and a more accurate rifle. Please use a heat gun or hair dryer to warm up threaded bore of receiver if barrel…

CMMG Upper Group Mk3 3GR 308 WIN

…blasted finish * Muzzle: CMMG SV Brake, threaded 5/8-24 * Hand Guard: CMMG RKM15 * Upper Rcvr: Billet 6061-T6 AL LR308 type * Gas Port Location: Rifle Upper Group consists of: * Upper Receiver Assembly (Upper Receiver, Ejection Port Cover) * Barrel Sub-Assembly * Hand Guard and Barrel Nut * Charging…

ATI AR15 Omni Hybrid MAXX 5.56/.223 Rifle Kit With Quad Rail

Our ALL NEW OMNI HYBRID MAXX features a fully-patented metal reinforced polymer upper receiver. Omni Hybrid MAXX Polymer Upper Receiver with Metal Insert 16" 5.56 / .223 Black Nitride Coated Barrel 7" Drop In Quad Rail Standard Profile Picatinny Rail Gas Block Chambered for both NATO 5.56x45mm and…

Smith & Wesson M&P15 Upper Assembly .300 Whisper / .300 AAC Blackout

* Manufactured on the M&P15 modern sporting rifle platform * Chambered in .300 Whisper * Will also safely fire .300 AAC Blackout * Very effective, short range round (approx. 200 yards) for hunting deer-sized game * Tactical application for the cartridge is for short-range target shooting * Cartridge…

Adams Arms Standard Carbine Piston Kit

This system will work with .223/5.56 x 45 mm NATO. Includes: * Patented One-Piece Bolt Carrier * .750" XLP Multi-Adjustable Low Profile Gas Block * Gas Plug * Upper Receiver Bushing * Bushing Installation Rod * Bolt Spring * Drive Rod with Bushing and Spring * Installation DVD

Palmetto State Armory 20" Barrel Lightweight M-Lok Upper .224 Valkyrie

The 224 Valkyrie upper is designed to function with any Mil-Spec AR-15 Lower Receiver and is to be used with a standard 6.8 SPC Magazine. Features: * Barrel Length: 20" * Gas System: Rifle-length * Barrel Profile: A2 Style * Barrel Steel: 416R * Barrel Finish: Stainless Steel * Chrome Lining: None *…

Adams Arms 16" Mid Tactical Evo 5.56 Upper

…to meet any of your needs. Add the patented Adams Arms piston system and you'll have an upper that will run cleaner, cooler, and longer than any other AR upper you own. *Weight: 4.721 lbs Features: * Upper Receiver: A4 Flat-Top, Forged * Barrel Length: 16" * Barrel Contour: Government * Barrel…

CMMG Upper Group Mk9 PDW 9mm

…22LR; every upper group is covered by CMMG s lifetime quality guarantee. Caliber: 9mm Barrel: 8.5″, 1:10 twist, medium taper, 4140CM, SBN Muzzle: A2 comp., threaded 1/2-36 Hand Guard: CMMG RKM7 KeyMod hand guard Receivers: Forged 7075-T6 AL M4 type upper Upper groups consists of: * Upper Receiver…

16inch .223 SST bull barrel standard tube

This DPMS AR-15 A3 Bull Barrel Upper Receiver Assembly comes fully assembled and ready to install on any standard small pin, mil-spec lower receiver. The versatile A3 Upper configuration is constructed of Forged 7075 T6 Aircraft Grade Aluminum, and features a Picatinny Top Rail for ease of mounting…

Sharps AR-15 Upper in 25X45 - 16 Inch Barrel 416R Black M4

SRC is proud to offer this outstanding Complete AR-15 Upper Assembly chambered in the potent 25-45 Sharps that comes fully assembled and ready to drop onto any standard AR-15 lower receiver. This upper includes a 416R stainless steel SRC Precision Barrel featuring polygonal 1 in 10 inch twist…

PWS Upper - 14.5" .223 Wylde Black Tri-5.56

A model developed after the M4 pattern Upper, the PWS MK114 Upper has quickly become the crowd favorite for those wanting a compact package without the NFA paperwork associated with shorter barrels. The MK114 retains lethal capability out to 500 meters with varying types of ammunition and boasts a…

CMMG Upper Group Mk9 T 9mm

…SBN Muzzle: A2 comp., threaded 1/2-36 Hand Guard: CMMG RKM11 KeyMod hand guard Receiver: Forged 7075-T6 AL M4 type upper Upper Group consists of: * Upper Receiver Assembly (Upper Receiver, Ejection Port Cover, Forward Assist, Gas Deflector) * Barrel Sub-Assembly * Hand Guard and Barrel Nut *…

LWRC IC-A5 Platform 5.56mm 16.1 in. Barrel Upper