Complete Uppers

Daniel Defense

Daniel Defense DDM4 V7 11.5 Contract Overrun Upper Receiver Group - 11.5" 5.56NATO Barrel, 1:7 Twist, DD4 7.0 Handguard

The Contract Overrun upper receiver group is purpose-built for CQB — maximum maneuverability and reliability in tight spots. The 11.5" Government-profile barrel and Carbine length gas system ensure smooth and reliable cycling while a front sight...

Angstadt Arms

Angstadt Arms AAUMDP0906 MDP-9 Roller Delayed Complete Upper - 9mm, 5.85" Barrel

Complete MDP-9 GEN2 9mm roller delayed upper receiver assembly. Compatible with AR9 and AR15 lower receivers. Includes 1913 Endrail adaptor. COMPACT POWER: ANYTIME READYThe MDP-9 GEN2 roller delayed action is now available as a stand alone upper...

Sons of Liberty Gun Works

Sons of Liberty Gun Works East India Starter Kit - 14.5" Complete Upper Receiver, 556NATO, 14.5" Barrel, Mid Length Gas System

East India Starter Kit The East India Starter Kit is a building block for any build you wish to do. Properly assembled with a USGI barrel nut, this is a great way to finish assembling your own upper without having to know how to install a barrel and gas...

Maxim Defense

Maxim Defense PDX U.R.G Complete Upper - 556NATO, 5.5", Black

**The Maxim PDX U.R.G ships with your choice of a Standard Mil-Spec BCG to be used with most common M4 compatible lowers, or a PDX/SCW compatible BCG buffer and Spring.  The Maxim Defense PDX™ U.R.G is built to handle the fierce demands...

Maxim Defense

Maxim Defense PDX U.R.G Complete Upper - 556NATO, 5.5", Flat Dark Earth (Arid)

**The Maxim PDX U.R.G ships with your choice of a Standard Mil-Spec BCG to be used with most common M4 compatible lowers, or a PDX/SCW compatible BCG buffer and Spring.  The Maxim Defense PDX™ U.R.G is built to handle the fierce demands...

American Tactical Inc.

ATI Alpha Max .410 Upper Shotgun GEN3 Kit - .410 Ga, 3", 18.50" Barrel, Includes 5rd Mag, 410 Buffer, and Flip-Up Sights

This ATI Alpha Max .410 Upper Shotgun Conversion Kit is designed to convert your existing 5.56 or .223 caliber AR-15 into a 410 GA semi-automatic shotgun. This conversion provides you with a versatile and powerful weapon for hunting, home defense,...

Rock River Arms

Rock River Arms SOC0820V1 LAR-15M CLB Complete Upper - .458 SOCOM 16" Barrel, 13" M-LOK Handguard, Beast Brake

Complete .458 SOCOM AR Upper  

Radical Firearms

Radical Firearms Complete AR15 Upper Assembly - 223 Rem/556NATO, 16" Barrel, 1:7 Twist, Black, MLOK Handguard, A2 Flash Hider

The Radical Firearms 16" Socom profile 5.56mm is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that build and hit the range. Built with our 15" RPR free float rail...

Q

Q Sugar Weasel Upper Receiver Assembly - 556NATO, 13" Barrel, 1/2X28, Carbine Length Gas System, Black and Tan, Free Float M-LOK Rail, Adjustable Gas Block, Does Not Include Bolt Carrier Group

You've asked for it and we've made you wait long enough. We're finally offering individual upper receiver assemblies. Designed as a replacement upper for your standard Sugar Weasel or for whatever Frankenstein build you can think of. These uppers come in...

Sharps Bros.

Sharps Bros., SBUR04, Complete Upper Receiver, Fits AR15, 223 Remington/556NATO, 16"

Complete SBUR04 upper receiver assembly. Full top rail with MLOK slots on 7 sides, making it easy to mount accessories exactly where needed. Includes anti-rotation tabs. Features Upper receiver made from billet 7075-T6 aluminum Handguard is made from...

Radian Weapons R0027 Model 1 Complete Upper 300 Blackout 9"

The Complete Upper is constructed of billet machined 7075-T6 aluminum with proprietary Extended aluminum hand guard w/ Magpul M-LOK mounting system and integrated upper/hand guard stainless steel anti-rotation pin. Its match grade 416R stainless steel...

Radian Weapons

Radian Weapons R0024 Model 1 Complete Upper 223 Wylde 14.50"

The Complete Upper is constructed of billet machined 7075-T6 aluminum with proprietary Extended aluminum hand guard w/ Magpul M-LOK mounting system and integrated upper/hand guard stainless steel anti-rotation pin. Its match grade 416R stainless steel...

Aero Precision

AR15 Complete Upper 16" 5.56 Mid-Length Barrel w/ FSB - Magpul SL Mid-Length Handguard, FDE

This AR15 Complete Upper features a 16" 5.56 MId-Length Barrel with Pinned FSB and a FDE Magpul MOE Handguard. Upper: Standard AR15 Upper Receiver Barrel: 16" 5.56 Carbine Barrel with Pinned FSB Handguard: Magpul MOE Handguard Gas System: Mid-Length Gas...

Aero Precision

AR15 Complete Upper 16" 5.56 Mid-Length Barrel w/ FSB - Magpul SL Mid-Length Handguard, Black

This AR15 Complete Upper features a 16" 5.56 MId-Length Barrel with Pinned FSB and Magpul MOE Handguard. Upper: Standard AR15 Upper Receiver Barrel: 16" 5.56 Carbine Barrel with Pinned FSB Handguard: Magpul MOE Handguard Gas System: Mid-Length Gas...

TacFire Inc.

TacFire BU30016 Complete Upper Assembly - 300 Blackout Caliber, 16" Black Nitride Barrel, 7075-T6 Aluminum Receiver, 15"M-LOK Handguard, Includes Bolt Carrier Group, Black Anodized

TacFire's AR-15 complete .300 Blackout Upper contains all the parts you need, minus the lower, to custom build your own AR chambered in .300 Blackout. TacFire was founded in 2010 with the goal of providing the highest quality parts required for tactical...

American Tactical Inc.

ATI Omni .410 Upper Conversion Kit - 410 Ga, 2.5" Chamber, 18.50" Barrel, Includes 5rd Mag, 410 Buffer, and Flip-Up Sights

The ATI 410 GA Shotgun Upper Conversion Kit is designed to convert your existing 5.56 or .223 caliber AR-15 into a 410 GA semi-automatic shotgun. This conversion provides you with a versatile and powerful weapon for hunting, home defense, blasting away...

Sig Sauer

Sig Sauer MCX-SPEAR LT 16" AR CONVERSION KIT 7.62X39-BLACK

Contact us for a special coupon code ! This complete kit will convert any MIL-SPEC AR-15/M4 Lower into the top-performing MCX-SPEAR LT. Included items: Complete 16" 7.62x39 upper assembly includes our removable 3-prong flash-hider ready to accept our...

Sig Sauer

Sig Sauer MCX-SPEAR LT 11.5" AR CONVERSION KIT 7.62X39-BLACK

Contact us for a special coupon code ! This complete kit will convert any MIL-SPEC AR-15/M4 Lower into the top-performing MCX-SPEAR LT. Included items: Complete 11.5" 7.62x39 upper assembly includes our removable 3-prong flash-hider ready to accept our...

Sig Sauer

Sig Sauer MCX-SPEAR LT 11.5 AR CONVERSION KIT 5.56 NATO-BLACK

Upgrade any M4/AR15 into an MCX-SPEAR LT. The MCX SPEAR LT developed for the SF community is the most advanced platform of its kind. Convert any M4/AR15 platform into a modernized folding firearm with superior reliability, durability, and accuracy...

Sig Sauer

Sig Sauer MCX-SPEAR LT 16" AR CONVERSION KIT 5.56 NATO-BLACK

Contact us for a special coupon code ! This complete kit will convert any MIL-SPEC AR-15/M4 Lower into the top-performing MCX-SPEAR LT. Included items: Complete 16" 5.56 NATO upper assembly includes our removable 3-prong flash-hider ready to accept our...

Sig Sauer

Sig Sauer MCX-SPEAR LT 9" AR CONVERSION KIT 300BLK-BLACK

Upgrade any M4/AR15 into an MCX-SPEAR LT. The MCX SPEAR LT developed for the SF community is the most advanced platform of its kind. Convert any M4/AR15 platform into a modernized folding firearm with superior reliability, durability, and accuracy...

Aero Precision

Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Mid Barrel, ATLAS R-ONE 12" M-LOK HG - Anodized

M4E1 Threaded Complete Upper, 14.5" 5.56 Mid Barrel, ATLAS R-ONE 12" M-LOK HG - Anodized.  Does Not Include BCG or Charging Handle   SPECS Specs Shipping to FFL Dealer Required No Made In America? Yes Aero Map Price 403...

Aero Precision

Aero Precision AR15 20" 5.56 Complete Upper w/ Pinned FSB & A2 Handguard

This AR15 Complete Upper is the same upper receiver used in our AERO M16A4 Special Edition Complete Rifle and features a 20" 5.56 Barrel w/ Pinned FSB, A2 Handguard and A2 Detachable Carry Handle. Upper Features: Upper: Standard M4 Upper...

Troy Industries

Troy A3 Complete Upper Receiver Assembly - 223 Rem/556NATO, 16" Barrel, 13" M-LOK Handguard

Troy Industries AR-15 A3 Upper Receivers are lightweight and ultra-low profile. Developed specifically for today's war fighter and Law Enforcement led by Special Operations field requirements. The M-Lok Battlerail handguard is machined from hardened...