POF USA Renegade+ Upper Receiver Assembly .300 AAC Blackout 34 in Length 10.5 in Barrel Carbin Length 9 Position Dictator Adjustable Renegade

Cmmg Barrel Sub-Assembly 300 Blackout - 16.1" Bbl Sub-Assy Medium Taper 1-7 5/8-24" Bbss

Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Chambered in .300 Blackout 16.1" Barrel Length Medium Taper Contour Carbine Gas System Length... ... more

Cmmg Barrel Sub-Assembly 300 Blackout - 16.1" Bbl Sub-Assy Medium Taper 1-7 5/8-24" Black Nitride

Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Chambered in .300 Blackout 16.1" Barrel Length Medium Taper Contour Carbine Gas System Length... ... more

Daniel Defense DDM4 300 S URG 300 AAC Blackout 1/8 S2W LPG DDM4 Rail 9.0 DDFS Complete Upper Receiver w/ Flash Hider Black 10.3in 23-088-19020-047

Daniel Defense DDM4 300 S URG 300 AAC Blackout 1/8 S2W LPG DDM4 Rail 9.0 DDFS Complete Upper Receiver w/ Flash Hider Black 10.3in 23-088-19020-047. 3-inch barrel with a Strength-to-Weight profile. Daniel Defense produces these AR15 Upper Receivers... ... more

POF USA Renegade Plus Upper Receiver Assembly .300 AAC Blackout 10.5in Barrel 9.5in Picatinny Rail Carakote Burnt Bronze 1447

POF USA Renegade Plus Upper Receiver Assembly .300 AAC Blackout 10.5in Barrel 9.5in Picatinny Rail Carakote Burnt Bronze 1447. Designed to stand out from the crowd of other AR15 Upper Receivers the Renegade Plus has high-quality improvements like... ... more

POF USA Renegade Plus Upper Receiver Assembly .300 AAC Blackout 10.5in Barrel 9.5in Picatinny Rail Black Anodized 1446

POF USA Renegade Plus Upper Receiver Assembly .300 AAC Blackout 10.5in Barrel 9.5in Picatinny Rail Black Anodized 1446. Designed to stand out from the crowd of other AR15 Upper Receivers the Renegade Plus has high-quality improvements like POF's... ... more

American Defense Manufacturing 300 Out 10.5 Inch Barrel M-Lok Rail Upper Reciever Midnight Bronze 10.5 in UICCUBOBRZ10M2MLOK

American Defense Manufacturing 300 Out 10.5 Inch Barrel M-Lok Rail Upper Reciever Midnight Bronze 10.5 in UICCUBOBRZ10M2MLOK. 5 Inch Barrel M-Lok Rail Upper Reciever lives up to its name. American Defense Manufacturing crafted this .300 AAC Blackout... ... more

American Defense Manufacturing 300 Out 10.5 Inch Barrel M-Lok Rail Upper Reciever Olive Drab 10.5 in UICCUBOOD10M2MLOK

American Defense Manufacturing 300 Out 10.5 Inch Barrel M-Lok Rail Upper Reciever Olive Drab 10.5 in UICCUBOOD10M2MLOK. 5 Inch Barrel M-Lok Rail Upper Reciever lives up to its name. American Defense Manufacturing crafted this .300 AAC Blackout Rifle... ... more

Radical Firearms Complete Upper Assembly AR-15 .300 Blackout 10.5in Barrel 10in HG M-LOK RPR 5/8x24 A2 FH Black CFU10.5-300HBAR-10RPR

Radical Firearms Complete Upper Assembly AR-15 .300 Blackout 10.5in Barrel 10in HG M-LOK RPR 5/8x24 A2 FH Black CFU10.5-300HBAR-10RPR. 5in HBAR profile 300BLK is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the... ... more

Ghost Firearms Elite Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Free Float Hand Guard

Ghost Firearms Elite Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Free Float Hand Guard. 300 Blackout Upper Receiver is an essential part of any build. Ghost Firearms machined these... ... more

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these... ... more

Grid Defense Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Rail A2 Flash Hider Tactical

Grid Defense Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Rail A2 Flash Hider Tactical. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these... ... more

Grid Defense Complete Upper Receiver .300 Blackout 7.5 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9 inch Octagon M-LOK Hand Guard Dimpled

Grid Defense Complete Upper Receiver .300 Blackout 7.5 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9 inch Octagon M-LOK Hand Guard Dimpled. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these Grid... ... more

Grid Defense Complete Upper Receiver .300 Blackout 7.5 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9 inch Octagon M-LOK Hand Guard Dimpled

Grid Defense Complete Upper Receiver .300 Blackout 7.5 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9 inch Octagon M-LOK Hand Guard Dimpled. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these Grid... ... more

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these... ... more

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these... ... more

Grid Defense Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Rail A2 Flash Hider Blue

Grid Defense Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Rail A2 Flash Hider Blue. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these Grid... ... more

Ghost Firearms Vital Complete Upper Receiver .300 Blackout 7.5in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 7in M-LOK Free Float Hand Guard A2

Ghost Firearms Vital Complete Upper Receiver .300 Blackout 7.5in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 7in M-LOK Free Float Hand Guard A2. 300 Blackout Upper Receiver. The ideal addition to your firearm these AR15 Lower Parts by Ghost... ... more

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these... ... more

Grid Defense Complete Upper Receiver .300 Blackout 7.5 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9 inch Octagon M-LOK Hand Guard Dimpled

Grid Defense Complete Upper Receiver .300 Blackout 7.5 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9 inch Octagon M-LOK Hand Guard Dimpled. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these Grid... ... more

Grid Defense Complete Upper Receiver .300 Blackout 7.5in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9in Octagon M-LOK Hand Guard Dimpled Flash Can

Grid Defense Complete Upper Receiver .300 Blackout 7.5in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9in Octagon M-LOK Hand Guard Dimpled Flash Can. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these... ... more

Grid Defense Complete Upper Receiver .300 Blackout 7.5 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9 inch Octagon M-LOK Hand Guard Dimpled

Grid Defense Complete Upper Receiver .300 Blackout 7.5 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9 inch Octagon M-LOK Hand Guard Dimpled. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these Grid... ... more

Ghost Firearms Vital Complete Upper Receiver .300 Blackout 10.5in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9in M-LOK Free Float Hand Guard A2

Ghost Firearms Vital Complete Upper Receiver .300 Blackout 10.5in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9in M-LOK Free Float Hand Guard A2. 300 Blackout Upper Receiver. The ideal addition to your firearm these AR15 Lower Parts by Ghost... ... more

Grid Defense Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Rail A2 Flash Hider Flat Dark

Grid Defense Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Rail A2 Flash Hider Flat Dark. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these... ... more

Grid Defense Complete Upper Receiver .300 Blackout 7.5 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9 inch Octagon M-LOK Hand Guard Dimpled

Grid Defense Complete Upper Receiver .300 Blackout 7.5 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9 inch Octagon M-LOK Hand Guard Dimpled. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these Grid... ... more

Ghost Firearms Vital Complete Upper Receiver .300 Blackout 16in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 11in M-LOK Free Float Hand Guard A2

Ghost Firearms Vital Complete Upper Receiver .300 Blackout 16in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 11in M-LOK Free Float Hand Guard A2. 300 Blackout Upper Receiver. The ideal addition to your firearm these AR15 Lower Parts by Ghost... ... more

Ghost Firearms Elite Complete Upper Receiver .300 Blackout 16in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14in M-LOK Free Float Hand Guard A2

Ghost Firearms Elite Complete Upper Receiver .300 Blackout 16in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14in M-LOK Free Float Hand Guard A2. 300 Blackout Upper Receiver is an essential part of any build. Ghost Firearms machined these Mil-Spec... ... more

Grid Defense Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Rail A2 Flash Hider Tungsten

Grid Defense Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Rail A2 Flash Hider Tungsten. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these... ... more

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these... ... more

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider

Grid Defense Complete Upper Receiver .300 Blackout 10.5 inch Pistol Length 4150 Steel Light HBAR Barrel 1-8 Twist 10.5 inch Hand Guard A2 Flash Hider. 300 Blackout Upper Receiver is an excellent addition to any high-quality AR build. Each of these... ... more

American Defense Manufacturing M-Lok Rail Upper Receiver .300 Blackout 10.5in ADM Nitrite BCG Black UICCUBOBLK10M2MLOK

American Defense Manufacturing M-Lok Rail Upper Receiver .300 Blackout 10.5in ADM Nitrite BCG Black UICCUBOBLK10M2MLOK. 5 Inch Barrel M-Lok Rail Upper Reciever lives up to its name. American Defense Manufacturing crafted this .300 AAC Blackout Rifle... ... more

POF USA Renegade 5.56 Upper 16.5in Barrel 9 Position Direct Impingement Dictator 14.5in Rail Black Anodized 00907

POF USA Renegade 5.56 Upper 16.5in Barrel 9 Position Direct Impingement Dictator 14.5in Rail Black Anodized 00907. 56 Specifications for POF USA Renegade Upper Receiver: Manufacturer: POF USA Cartridge: 5.56x45mm NATO Barrel Length: 16.5 in Muzzle... ... more

Desert Tech MDRx Barrel Assembly w/ Forward Ejection .300 AAC Blackout 16in Length Black MDR-BR-D16-FE

Desert Tech MDRx Barrel Assembly w/ Forward Ejection .300 AAC Blackout 16in Length Black MDR-BR-D16-FE. Equipping your firearm with these Gun Barrels by Desert Tech gives your shooting experience a boost by allowing you to shoot with greater... ... more

POF USA Renegade Plus Upper Receiver Assembly 5.56mm 16.5in Barrel M-LOK Rail Burnt Bronze 1325

POF USA Renegade Plus Upper Receiver Assembly 5.56mm 16.5in Barrel M-LOK Rail Burnt Bronze 1325. Designed to stand out from the crowd of other AR15 Upper Receivers the Renegade Plus has high-quality improvements like POF's roller cam pin and... ... more

POF USA Renegade Plus Upper Receiver Assembly 5.56mm 10.5in Barrel M-LOK Rail Burnt Bronze 1651

POF USA Renegade Plus Upper Receiver Assembly 5.56mm 10.5in Barrel M-LOK Rail Burnt Bronze 1651. Designed to stand out from the crowd of other AR15 Upper Receivers the Renegade Plus has high-quality improvements like POF's roller cam pin and... ... more

Brenton USA Upper Receiver Guide .300 AAC Blackout 18in Barrel 5/8x24 Thread 1-8 Twist Midnight MarbleKote Midnight MarbleKote ULG18MM30B

Brenton USA Upper Receiver Guide .300 AAC Blackout 18in Barrel 5/8x24 Thread 1-8 Twist Midnight MarbleKote Midnight MarbleKote ULG18MM30B. Limited rifles are available in Midnight adjustable stock configuration only and include Black Nitride carrier... ... more

Brenton USA Upper Receiver Scout .300 Blackout 18in Barrel 5/8x24 Thread 1-8 Twist Autumn MarbleKote Autumn MarbleKote UPS18AM30B

Brenton USA Upper Receiver Scout .300 Blackout 18in Barrel 5/8x24 Thread 1-8 Twist Autumn MarbleKote Autumn MarbleKote UPS18AM30B. Pursuit rifles look feel and perform like you expect a perfectly balanced system should. Pursuit rifles are perfect... ... more

Brenton USA Upper Receiver Scout .300 Blackout 18in Barrel 5/8x24 Thread 1-8 Twist Foliage MarbleKote FoliageMarbleKote UPS18FM30B

Brenton USA Upper Receiver Scout .300 Blackout 18in Barrel 5/8x24 Thread 1-8 Twist Foliage MarbleKote FoliageMarbleKote UPS18FM30B. Pursuit rifles look feel and perform like you expect a perfectly balanced system should. Pursuit rifles are perfect... ... more