Uppers

Includes: M4E1 Threaded Upper Receiver, No Forward Assist15" ATLAS S-ONE Handguard16" 5.56 CMV BarrelLow Profile Gas Block and Mid-Length Gas TubePort Door AssemblyA2 Flash Hider M4E1 Threaded, No Forward Assist Upper Receiver Features: No Forward AssistCustom enhanced forging that gives the upper receiver a "billet look" while maintaining the structural integrity of a forged part.Picatinny profile that blends seamlessly with our Enhanced and ATLAS Series HandguardsM4 Feedramps.250 takedown...

Includes: M4E1 Threaded Assembled Upper Receiver15" ATLAS S-ONE M-LOK Handguard of choice16" 5.56 CMV BarrelLow Profile Gas Block and Mid-Length Gas TubeProduct comes assembledThis complete upper does not include BCG or Charging Handle. M4E1 Threaded Upper Receiver Features: New enhanced forging that gives the upper receiver a "billet look"New picatinny profile that blends seamlessly with our Enhanced Series HandguardsM4 Feedramps.250 takedown pin holesLaser engraved T-marksIncludes port door...

The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075-T6 Aluminum, precision machined to work with all mil-spec AR15 parts and includes the port door and forward assist pre-installed. The M4E1 Threaded Upper Receiver is designed to pair...

Features: No Forward AssistCustom enhanced forging that gives the upper receiver a "billet look" while maintaining the structural integrity of a forged part.Picatinny profile that blends seamlessly with our Enhanced and ATLAS Series HandguardsM4 Feedramps.250 takedown pin holes

The AR15 Assembled Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil- spec M16/M4 specifications and features M4 feedramps. Match this upper with one of our AR15 lower receivers for a solid and dependable fit.

FEATURES: M4 Feedramps.250 takedown pin holesLazer engraved T-marksNo forward assist provisionsPort door installed INCLUDES: AR15 Assembled Upper Receiver Without Forward Assist in Anodized Black

Andersons AOR Complete upper: Andersons AOR Complete upper: comes with 16 M4 1-8 twist barrel, 7075 T6 Forged Upper Receiver, A2 HandGuard, A2 Flash Hider, Standard Charging Handle, and BCG.

Packaged Complete Upper, 16 .300BLK Optic Ready minus Charging Handle and BCG: comes with, 16 300 Blackout Barrel. 1-7 twist. Phosphate Finish, Carbine Gas Set Up, 5/8-24 threads, .125 gas port 7075 T6, Forged Upper Receiver, A2 HandGuard, 308 A2 Flash Hider.

Mil-Spec M4 Upper Receiver Assembly Geissele Reliability Enhanced Bolt Carrier Group Geissele Airborne Charging Handle, DDC Geissele SMR MK16, DDC, 9.3" Geissele 5.56MM 10.3",GOV profile, CHF, Chrome Lined, Carbine Gas, Mag Phos, ChromolyV, 1/7 Twist, Barrel Geissele Super Gas Block .750 Low-Profile Gas Block, Pinned (Bombproof Installation) SureFire SF4P 4 Prong Flash Hider Super 42 Braided Wire Buffer Spring and H3 Buffer Combo INCLUDED! ...

This upper receiver group is a Complete 11.5" variant of the Geissele URG-I. NFA DISCLAIMER/WARNING: This item does not meet the 16" minimum barrel length requirement, and requires registration and a tax stamp with the Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE) when assembled into a complete rifle. Additional state and local restrictions may apply. It is the sole responsibility of the buyer to comply with any and all applicable laws ...

SPECS: Mil-Spec M4 Upper Receiver AssemblyGeissele Reliability Enhanced Bolt Carrier GroupGeissele Airborne Charging Handle, DDCGeissele SMR MK16, DDC, 13.5"Geissele 5.56MM 14.5" GOV profile, CHF, Chrome Lined, ML Gas, BarrelGeissele Super Gas Block .750 Low-Profile Gas Block, Pinned (Bombproof Installation)SureFire SF4P 4 Prong Flash Hider, Pinned & WeldedSuper 42 Braided Wire Buffer Spring and H1 Buffer Combo INCLUDED! ...

UPPER RECEIVER - Mil-Spec with Indexing Marks and M4 Feed Ramps. 7075-T6 Aluminum, Type III Hard Coat AnodizedBARREL - 4150CMV Steel, Stress Relieved, Armornite® Treated, 1:8 Twist, 5R Rifled, GVAC™ Profile, Nickle Boron Coated barrel Extension, 1/2X28 TPI Muzzle ThreadsGAS SYSTEM - Pinned Low-Pro GVAC™ Gas Block, 4140CM Steel, Mid-Length GVAC™, Direct-ImpingementMUZZLE DEVICE - Gemtech ETM™ Flash Hider, 4140CM SteelBOLT CARRIER GROUP - Carpenter 158 steel bolt, 8620 Steel Carrier, Mil-Spec MP...

EASIER THAN… EASY Installs easily in secondsDirect replacement for USGI ejection port cover on forged Mil-spec upper receivers MORE RUGGED THAN METAL PORT COVERS Durable, injection-molded polymer constructionCorrosion resistant componentsWill not bend or deform from impacts

EASIER THAN… EASY Installs easily in secondsDirect replacement for USGI ejection port cover on forged Mil-spec upper receivers MORE RUGGED THAN METAL PORT COVERS Durable, injection-molded polymer constructionCorrosion resistant componentsWill not bend or deform from impacts

Sig Sauer MCX Upper 11.5" Barrel Upper Assembly, 5.56 NATO, Tapered Lug, MLOK. Available in 5.56 NATO, This item includes: a Sig Sauer MCX upper assembly, 90 degree muzzle adapter for standard non Sig Sauer suppressors, and a MCX owner’s manual. The kit features a 11.5" barrel with a thread pitch of 5/8" x 24 TPI. The MCX Virtus upper receiver assembly features a standard free-floating M-LOK handguard with a top picatinny rail for sight and optic, as well as a short-stroke piston system and...

The MCX Virtus upper receiver assembly features a standard free-floating M-LOK handguard with a top picatinny rail for sight and optic, as well as a short-stroke piston system and unique internal recoil system that eliminate the M4-style buffer tube resulting in a light-recoiling and compact platform able to be configured for any task.

Adapts with any M4/AR15 Spec Lower AssemblyDual Rod Recoil Assembly Eliminates Buffer SystemM4 Adapter allows for Pic Rail Folding Stock CapabilitiesAdjustable Gas System for Suppressor OptimizationQuick Change Barrel Design allows to easily swap calibers and barrel lengthsGas Piston Design Reduces Part Exposure to Carbon FoulingDesigned to go 20k rounds before any part replacementsSLX/SLH Next Gen Suppressor Designed QD Flash Hider for Clutch-Lok AdaptabilityAmbidextrous Charging Handle with...

Adapts with any M4/AR15 Spec Lower AssemblyDual Rod Recoil Assembly Eliminates Buffer SystemM4 Adapter allows for Pic Rail Folding Stock CapabilitiesAdjustable Gas System for Suppressor OptimizationQuick Change Barrel Design allows to easily swap calibers and barrel lengthsGas Piston Design Reduces Part Exposure to Carbon FoulingDesigned to go 20k rounds before any part replacementsSLX/SLH Next Gen Suppressor Designed QD Flash Hider for Clutch-Lok AdaptabilityAmbidextrous Charging Handle with...

Thread pitch 1/2x28 Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.

Thread pitch 5/8 in - 24 Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.

Barrel Compatibility: 9MMFinish: Black *Note, only for use on 9mm/ .357SIG / .40S&W fire control units (FCU). It will not function with a .45 ACP FCU.

Factory upper receiver assembly for the MCX-SPEAR LT. Assembled upper includes ejection port cover, barrel clamps, cam path insert, barrel clamp screws, forward assist with deflector. Does not include barrel, handguard, or bolt assembly. ...