Brand
Aero PrecisionAero Precision 19
American Defense MFGAmerican Defense MFG 2
Black Rain OrdnanceBlack Rain Ordnance 1
Colt's ManufacturingColt's Manufacturing 2
Daniel DefenseDaniel Defense 5
Foxtrot MikeFoxtrot Mike 2
Geissele AutomaticsGeissele Automatics 4
Primary Weapons SystemsPrimary Weapons Systems 5
Radian WeaponsRadian Weapons 2
SIONICS Weapon SystemsSIONICS Weapon Systems 2
Sons of Liberty Gun WorksSons of Liberty Gun Works 1
Complete Uppers
Daniel Defense DDM4 V7 LW Upper Receiver – 16″
Out of stock
Original price was: $1,263.00.$1,213.35Current price is: $1,213.35.
Daniel Defense M4A1 FSP Upper Receiver – 14.5″
Out of stock
Original price was: $1,566.00.$1,502.38Current price is: $1,502.38.
Daniel Defense M4A1 Upper Receiver – 14.5″
Out of stock
Original price was: $1,559.00.$1,495.06Current price is: $1,495.06.
Daniel Defense DDM4 V7 Upper Receiver – 16″
Out of stock
Original price was: $1,263.00.$1,213.35Current price is: $1,213.35.
Radian Weapons Model 1 Complete Upper 17.5″ – 223 Wylde
Out of stock
$2,107.33
Radian Weapons Model 1 Complete Upper 16″ – 223 Wylde
Out of stock
$2,066.84
Daniel Defense MK18 RIS II Complete Upper – 10.3″
Out of stock
Original price was: $1,603.50.$1,366.00Current price is: $1,366.00.
SIONICS 11.5″ Complete Premium Upper Receiver Group – 5.56
Out of stock
Original price was: $829.95.$789.95Current price is: $789.95.
SIONICS 16″ Complete Premium Upper Receiver Group – 5.56
Out of stock
Original price was: $829.95.$789.95Current price is: $789.95.
Sons of Liberty Gun Works M4-89 URG Upper Receiver 9″ – 300BLK
Out of stock
Original price was: $900.00.$891.28Current price is: $891.28.There is no substitute for quality. Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. Every gun should be built right the first time, ready for hard use right out of the box. They believe a quality, accurate, and long lasting barrel is the heart of a Combat Grade weapon.
- Barrel: 9″ Combat Barrel
- Caliber: 300 Blackout
- Twist Rate: 1:7
- Handguard: 8″ M89 MLOK
- Thread Pitch: 5/8×24
- Finish: QPQ
Geissele Super Duty Complete Upper Receiver Group – 10.3″
Out of stock
Price range: $1,200.00 through $1,350.00The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 10.3” complete upper chambered in 5.56mm features a Nanoweapon coated Surefire Closed-Tine Flash Hider mounted to an 10.3” Manganese Phosphate coated, CHF, Chrome Lined 1-7 twist barrel.
- Length: 10.3″
- Caliber: 5.56MM
- Color: Black or DDC
- Receiver: Super Duty Upper w/ cam Pin cut-out
- Bolt Carrier: Nanoweapon Reliability Enhanced BCG
- Bolt: Geissele Stressproof Bolt with Asymmetric Cam Pin
- Rail: 9.3″ SMR MK16
- Barrel: 10.3″ Geissele Barrel, CHF, Chrome Lined, 1-7 Twist – Geissele Profile
- Gas System: Carbine Length
- Gas Block: Super Compact Gas Block
- Charging Handle: Airborne Charging Handle
- Muzzle Device: Nanocoated Closed-Tine Flash Hider
Geissele Super Duty Complete Upper Receiver Group – 16″
Out of stock
Price range: $1,200.00 through $1,350.00The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 16” complete upper chambered in 5.56mm features a Nanoweapon coated Surefire Closed-Tine Flash Hider mounted to an 16” Manganese Phosphate coated, CHF, Chrome Lined 1-7 twist barrel.
- Length: 16″
- Caliber: 5.56MM
- Color: Black or DDC
- Receiver: Super Duty Upper w/ cam Pin cut-out
- Bolt Carrier Group: Nanoweapon Reliability Enhanced BCG
- Bolt: Geissele Stressproof Bolt with Asymmetric Cam Pin
- Rail: 15″ SMR MK16
- Barrel: 16″ Geissele Barrel, CHF, Chrome Lined, 1-7 Twist – Geissele Profile
- Gas System: Geissele Length
- Gas Block: Super Compact Gas Block
- Charging Handle: Airborne Charging Handle
- Muzzle Device: Nanocoated Closed-Tine Flash Hider
American Defense MOD2 14.5″ Complete Upper Receiver – .223 Wylde
Out of stock
Original price was: $1,570.82.$1,282.21Current price is: $1,282.21.American Defense Mfg MOD2 Complete M-LOK Upper Receivers in .223 Wylde come complete with Criterion Barrel, Premium Bolt Carrier Group, Raptor Charging Handle and Surefire Warcomp muzzle device.
- Barrel: Criterion 1/8 Twist
- Barrel length: 14.5″
- Thread Pitch: 1/2×28
- Caliber: .223 Wylde
- Material: 7075 -T6 Aluminum
- Finish: Anodize
- Muzzle Device: Surefire Warcomp
Primary Weapon Systems 16.1″ MK116 MOD 2-M Complete Upper – .223 Wylde
Out of stock
Original price was: $1,349.95.$1,299.95Current price is: $1,299.95.
Primary Weapon Systems 11.85″ MK111 PRO Complete Upper – .223 Wylde
Out of stock
Original price was: $824.95.$809.95Current price is: $809.95.The MK111 PRO features the tried and true PWS long stroke piston system that PWS owners have grown to know and love.
- Operating System: PWS Long Stroke Piston System, 3 setting Adjustable Gas Regulator
- Material: 6061 extrusion
- Finish: Anodized
- Caliber: .223 Wylde
- Barrel Length: 11.85”
- Gas System Length: Carbine
- Barrel Twist Rate: 1:8
- Muzzle Device: A2 Flash Hider
- Upper Receiver: PWS Proprietary Piston Upper
- Handguard: PWS M-Lok™ 11” Handguard (1.7” width, 2.25” height)
- Charging Handle: Radian Raptor™ Ambidextrous Charging Handle
American Defense MOD2 16″ Complete Upper Receiver – .223 Wylde
Out of stock
Original price was: $1,418.21.$1,282.21Current price is: $1,282.21.American Defense Mfg MOD2 Complete M-LOK Upper Receivers in .223 Wylde come complete with Criterion Barrel, Premium Bolt Carrier Group, Raptor Charging Handle and Surefire Warcomp muzzle device.
- Barrel: Criterion 1/8 Twist
- Barrel length: 16″
- Thread Pitch: 1/2×28
- Caliber: .223 Wylde
- Material: 7075 -T6 Aluminum
- Finish: Anodize
- Muzzle Device: Surefire Warcomp
Geissele URGI Complete Upper Receiver Group – 11.5″
Out of stock
$1,249.00The USASOC URGI is a near-clone of the upper receiver group currently in service with the US Army Special Operations Command.
- Geissele SMR MK16, DDC, 10.5″ Rail
- SureFire SF4P 4 Prong Flash Hider
- Mil-Spec M4 Upper Receiver Assembly
- Geissele Airborne Charging Handle
- Geissele Reliability Enhanced Bolt Carrier Group
- Geissele Super Gas Block .750 Low-Profile Gas Block, Pinned
- Super 42 Braided Wire Buffer Spring and Buffer Combo INCLUDED!
- Geissele 5.56MM 11.5″, GOV profile, CHF, Chrome Lined Barrel
Geissele URGI Complete Upper Receiver Group – 14.5″
Out of stock
$1,249.00The USASOC URGI is a near-clone of the upper receiver group currently in service with the US Army Special Operations Command.
- Mil-Spec M4 Upper Receiver Assembly
- Geissele Reliability Enhanced Bolt Carrier Group
- Geissele Airborne Charging Handle, DDC
- Geissele SMR MK16, DDC, 13.5″
- Geissele 5.56MM 14.5″ GOV profile, CHF, Chrome Lined, ML Gas, Barrel
- Geissele Super Gas Block .750 Low-Profile Gas Block, Pinned (Bombproof Installation)
- SureFire SF4P 4 Prong Flash Hider, Pinned & Welded
- Super 42 Braided Wire Buffer Spring and H1 Buffer Combo INCLUDED!
Primary Weapons Systems 16.1″ MK116 Pro Complete Upper – .223 Wylde
Out of stock
$828.88The PWS MK116 PRO is perfect for shooters looking for a cost-effective piston system firearm without sacrificing the high-quality standards PWS has been known for over a decade.
- 33Operating System: PWS Long Stroke Piston System, 3 setting Adjustable Gas Regulator.
- Caliber: .223 Wylde
- Barrel Length: 16.1”
- Gas System Length: Mid-Length
- Barrel Twist Rate: 1:8
- Muzzle Device: A2 Flash Hider
- Upper Receiver: PWS Proprietary Piston Upper.
- Material: 6061 Aluminum.
- Finish: Anodized.
- Handguard: PWS M-Lok™ 15” Handguard (1.7” width, 2.25” height)
- Charging Handle: Radian Raptor™ Ambidextrous Charging Handle
Aero Precision M4E1 16″ 5.56 Complete Upper Receiver w/ ATLAS R-ONE Handguard
Out of stock
Original price was: $509.99.$471.57Current price is: $471.57.This complete upper comes assembled with Aero’s M4E1 Threaded Assembled Upper Receiver and the ATLAS R-ONE Handguard. Includes:
- M4E1 Threaded Assembled Upper Receiver
- ATLAS R-ONE Handguard of choice
- 16″ 5.56 CMV Barrel
- Low Profile Gas Block and Mid-Length Gas Tube
- Product comes assembled
- This complete upper does not include BCG or Charging Handle.
Aero Precision M4E1 14.5″ 5.56 Complete Upper Receiver w/ ATLAS R-ONE Handguard
Out of stock
Original price was: $494.99.$457.85Current price is: $457.85.
Aero Precision 10.5″ 5.56 Complete Upper Receiver w/ ATLAS R-ONE Handguard – No Forward Assist
Out of stock
Original price was: $429.99.$398.40Current price is: $398.40.This AR15 Complete Upper Receiver, paired with the ATLAS R-ONE handguard streamlines the appearance of your next AR15 build by removing the Forward Assist.
- AR15 Assembled Upper Receiver with No Forward Assist
- 9″ M-LOK ATLAS R-ONE Handguard
- 10.5″ 5.56 CMV Barrel
- Low Profile Gas Block and Carbine Length Gas Tube
- Product comes assembled
- This complete upper does not include BCG or Charging Handle.
- The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.
Aero Precision M4E1 12.5″ 5.56 Complete Upper Receiver w/ ATLAS R-ONE Handguard
Out of stock
Original price was: $484.99.$448.71Current price is: $448.71.This complete upper comes assembled with Aero’s M4E1 Threaded Assembled Upper Receiver and the ATLAS R-ONE Handguard. Includes:
- M4E1 Threaded Assembled Upper Receiver
- 12″ M-LOK ATLAS R-ONE Handguard
- 12.5″ 5.56 Government Profile CMV Barrel, Carbine Length
- Low Profile Gas Block and Carbine Length Gas Tube
- AR15 A2 Birdcage Flash Hider
- Product comes assembled
- This complete upper does not include BCG or Charging Handle.
Aero Precision M5 18″ .308 Complete Upper Receiver w/ ATLAS R-ONE Handguard
Out of stock
$595.05The .308 Complete Upper Receiver was designed with size and weight in mind featuring Aero’s M5 Assembled Upper Receiver and ATLAS 15″ R-ONE Handguard. Includes:
- M5 Assembled Upper Receiver
- ATLAS 15″ R-ONE Handguard
- 18″ .308 CMV Barrel, Rifle Length
- Low Profile Gas Block and Rifle Length Gas Tube
- Product comes assembled
- This complete upper does not include a BCG or Charging Handle.
Aero Precision M4E1 10.5″ 5.56 Complete Upper Receiver w/ ATLAS R-ONE Handguard
Out of stock
Original price was: $459.99.$425.84Current price is: $425.84.This complete upper comes assembled with Aero’s M4E1 Threaded Assembled Upper Receiver and the ATLAS R-ONE Handguard. Includes:
- M4E1 Threaded Assembled Upper Receiver
- ATLAS S-ONE Handguard of choice
- 10.5″ 5.56 CMV Barrel
- Low Profile Gas Block and Carbine Length Gas Tube
- Product comes assembled
- This complete upper does not include BCG or Charging Handle.
- The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.
Aero Precision M4E1 16″ 5.56 Complete Upper Receiver w/ ATLAS S-ONE Handguard
Out of stock
Original price was: $655.00.$589.99Current price is: $589.99.
Aero Precision M4E1 11.5″ 5.56 Complete Upper Receiver w/ ATLAS S-ONE Handguard
Out of stock
$430.41This complete upper includes Aero’s new ATLAS S-ONE Handguard. The S-ONE line of handguards is designed with size and weight in mind, providing the perfect addition to your lightweight build. Includes:
- M4E1 Threaded Assembled Upper Receiver
- 9″ ATLAS S-ONE M-LOK Handguard
- 11.5″ 5.56 CMV Barrel, Carbine Length
- Low Profile Gas Block and Carbine Length Gas Tube
- Product comes assembled
- This complete upper does not include BCG or Charging Handle.
- The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.
Aero Precision M4E1 10.5″ 5.56 Complete Upper Receiver w/ ATLAS S-ONE Handguard
Out of stock
Original price was: $459.99.$425.84Current price is: $425.84.This complete upper includes Aero’s new ATLAS S-ONE Handguard. The S-ONE line of handguards is designed with size and weight in mind, providing the perfect addition to your lightweight build. Includes:
- M4E1 Threaded Upper Receiver, No Forward Assist.
- 9.2″ ATLAS S-ONE Handguard.
- 10.5″ 5.56 CMV Barrel.
- Low Profile Gas Block and Carbine Length Gas Tube.
- Product comes assembled
- This complete upper does not include BCG or Charging Handle.
- The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.
Aero Precision 11.5″ 5.56 Complete Upper Receiver w/ ATLAS R-ONE Handguard – No Forward Assist
Out of stock
Original price was: $434.99.$402.98Current price is: $402.98.This AR15 Complete Upper Receiver, paired with the ATLAS R-ONE handguard streamlines the appearance of your next AR15 build by removing the Forward Assist. Includes:
- AR15 Assembled Upper Receiver with No Forward Assist
- 9″ M-LOK ATLAS R-ONE Handguard
- 11.5″ 5.56 CMV Barrel, Carbine Length
- Low Profile Gas Block and Carbine Length Gas Tube
- Product comes assembled
- This complete upper does not include BCG or Charging Handle.
- The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel
Aero Precision 16″ 5.56 Complete Upper Receiver w/ ATLAS S-ONE Handguard – No Forward Assist
Out of stock
Original price was: $479.99.$444.13Current price is: $444.13.This AR15 Complete Upper Receiver, paired with the ATLAS S-ONE handguard streamlines the appearance of your next AR15 build by removing the Forward Assist. Includes:
- AR15 Assembled Upper Receiver with No Forward Assist
- 15″ M-LOK ATLAS S-ONE Handguard
- 16″ 5.56 CMV Barrel
- Low Profile Gas Block and Mid-Length Gas Tube
- Product comes assembled
- This complete upper does not include BCG or Charging Handle.
Aero Precision 11.5″ 5.56 Complete Upper Receiver w/ ATLAS S-ONE Handguard – No Forward Assist
Out of stock
Original price was: $434.99.$402.98Current price is: $402.98.This AR15 Complete Upper Receiver, paired with the ATLAS S-ONE handguard streamlines the appearance of your next AR15 build by removing the Forward Assist. Includes:
- AR15 Assembled Upper Receiver with No Forward Assist
- 9″ M-LOK ATLAS S-ONE Handguard
- 11.5″ 5.56 CMV Barrel, Carbine Length
- Low Profile Gas Block and Carbine Length Gas Tube
- Product comes assembled
- This complete upper does not include BCG or Charging Handle
- The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel