Aero Precision Complete Upper Receiver M4E1-T .223 16in Wylde Barrel 12in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth APAR700314M9

Primary Weapons Ar-15 Mk1 Mod 1-M Upper Receiver Assembly 223 Wylde M-Lok - Mk111 Mod 1-M Upper Rece

The MK111 MOD 1-M is perfect for shooters looking for a weapon with endless uses. Maintaining the shortest barrel length recommended for suppressed use, this compact upper receiver is one of the most popular from LE to heli-hunting. The MK111 upper... ... more

Stern Defense Ar-15 Sd Mod 4 9mm Upper Receiver M-Lok Complete - Sd Mod 4 9mm Upper Receiver 16.1in

The Stern Defense SD Mod 4 9mm Upper Receiver is a complete, ready to go, upper receiver solution for those looking to spend less time building and more time shooting. The 16.1 inch, 1-10 twist, Melonited barrel, is free float in a 12in M-LOK... ... more

Stern Defense Ar-15 Sd Mod 4 9mm Upper Receiver 4in M-Lok Complete - Sd Mod 4 9mm Upper Receiver 4in

The Stern Defense SD Mod 4 9mm Upper Receiver is a complete, ready to go, upper receiver solution for those looking to spend less time building and more time shooting. The 4 inch, 1-10 twist, Melonited barrel, is free float in a 4in M-LOK handguard... ... more

Aero Precision M4E1 Complete Upper Receiver 18in .223 Wylde Rifle Barrel EQ-15 HG Gen 2 Cerakote FDE APAR640252Q42

Aero Precision M4E1 Complete Upper Receiver 18in .223 Wylde Rifle Barrel EQ-15 HG Gen 2 Cerakote FDE APAR640252Q42. 223 Wylde Complete Upper Receiver is a one-piece free float design with built-in anti-rotation tabs. These upper receivers AR15 Upper... ... more

Aero Precision M4E1 Complete Upper Receiver 18in .223 Wylde Rifle Barrel EM-15 HG Gen 2 Cerakote FDE APAR640252M42

Aero Precision M4E1 Complete Upper Receiver 18in .223 Wylde Rifle Barrel EM-15 HG Gen 2 Cerakote FDE APAR640252M42. 223 Wylde Complete Upper Receiver is a one-piece free float design with built-in anti-rotation tabs. These upper receivers AR15 Upper... ... more

Aero Precision M4E1 Complete Upper Receiver 18in .223 Wylde Rifle Barrel EQ-15 HG Gen 2 Anodized Black APAR640251Q42

Aero Precision M4E1 Complete Upper Receiver 18in .223 Wylde Rifle Barrel EQ-15 HG Gen 2 Anodized Black APAR640251Q42. 223 Wylde Complete Upper Receiver is a one-piece free float design with built-in anti-rotation tabs. These upper receivers AR15... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-15 HG Gen 2 Anodized Black APAR640251Q6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-15 HG Gen 2 Anodized Black APAR640251Q6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-15 HG Gen 2 FDE Cerakote APAR640252M6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-15 HG Gen 2 FDE Cerakote APAR640252M6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-15 HG Gen 2 Anodized Black APAR640251M6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-15 HG Gen 2 Anodized Black APAR640251M6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-12 HG Gen 2 Anodized Black APAR640231Q6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-12 HG Gen 2 Anodized Black APAR640231Q6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-15 Gen 2 HG FDE Cerakote APAR640252Q6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EQ-15 Gen 2 HG FDE Cerakote APAR640252Q6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision M4E1 Complete Upper Receiver AR-15 18 in Rifle Length Barrel 15 in M-LOK Handguard No BCH/CH Anodized Black APAR640251M8

Aero Precision M4E1 Complete Upper Receiver AR-15 18 in Rifle Length Barrel 15 in M-LOK Handguard No BCH/CH Anodized Black APAR640251M8. These AR15 Upper Receivers from Aero Precision have an enhanced milling design for grip and visual appeal. In... ... more

Aero Precision Complete Upper Receiver M4E1 .223 Wylde Mid Barrel EQ-15 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600251Q9

Aero Precision Complete Upper Receiver M4E1 .223 Wylde Mid Barrel EQ-15 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600251Q9. These AR15 Upper Receivers from the trendsetters at Aero Precision comes fully assembled so that you can lock... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-12 HG Gen 2 FDE Cerakote APAR640232M6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-12 HG Gen 2 FDE Cerakote APAR640232M6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-12 HG Gen 2 Anodized Black APAR640231M6

Aero Precision M4E1 Complete Upper Receiver 16in 5.56 M4 Carbine Barrel EM-12 HG Gen 2 Anodized Black APAR640231M6. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more... ... more

Aero Precision Complete Upper Receiver M4E1 .223 Wylde Mid Barrel EQ-15 HG No BCG/Charging Handle Gen 2 FDE Cerakote 16in APAR600252Q9

Aero Precision Complete Upper Receiver M4E1 .223 Wylde Mid Barrel EQ-15 HG No BCG/Charging Handle Gen 2 FDE Cerakote 16in APAR600252Q9. These AR15 Upper Receivers from the trendsetters at Aero Precision comes fully assembled so that you can lock in... ... more

Radical Firearms Complete Upper Assembly 16in 300 AAC HBAR Contour 1/8 Twist 12in MHR M-LOK A2 Flash Hider Black CFU16-300HBAR-12MHR

Radical Firearms Complete Upper Assembly 16in 300 AAC HBAR Contour 1/8 Twist 12in MHR M-LOK A2 Flash Hider Black CFU16-300HBAR-12MHR. 62x39 is a MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter... ... more

Radical Firearms Complete Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 15in RPR M-LOK A2 Flash Hider Black CFU16-223W-SS-15RPR

Radical Firearms Complete Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 15in RPR M-LOK A2 Flash Hider Black CFU16-223W-SS-15RPR. Complete upper assemblies include: Bolt Carrier Group Bolt Carrier Magazine Housing Gas Tube Flash Hider... ... more

Radical Firearms RF Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 12in MHR M-LOK A2 Flash Hider Black FU16-223W-SS-12MHR

Radical Firearms RF Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 12in MHR M-LOK A2 Flash Hider Black FU16-223W-SS-12MHR. Based upon the classic American platform and design the upper is made with the time proven recipe of sturdy bolt... ... more

Radical Firearms Complete Upper Assembly 18in 223 Wylde 416R HBAR Contour 1/8 Twist 15in RPR M-LOK A2 Flash Hider Black CFU18-223W-SS-15RPR

Radical Firearms Complete Upper Assembly 18in 223 Wylde 416R HBAR Contour 1/8 Twist 15in RPR M-LOK A2 Flash Hider Black CFU18-223W-SS-15RPR. Radical Firearms choose high quality barrels for their upper assemblies pairing that with a robust free... ... more

Radical Firearms Complete Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 15in MHR M-LOK A2 Flash Hider Black CFU16-223W-SS-15MHR

Radical Firearms Complete Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 15in MHR M-LOK A2 Flash Hider Black CFU16-223W-SS-15MHR. Complete upper assemblies include: Bolt Carrier Group Bolt Carrier Magazine Housing Gas Tube Flash Hider... ... more

Radical Firearms Complete Upper Assembly 16in 5.56 SOCOM 1/7 Twist 12in MHR M-LOK A2 Flash Hider Black CFU16-5.56SOC-12MHR

Radical Firearms Complete Upper Assembly 16in 5.56 SOCOM 1/7 Twist 12in MHR M-LOK A2 Flash Hider Black CFU16-5.56SOC-12MHR. 5.56 SOCOM Upper Assembly. These AR15 Upper Receivers crafted by Radical Firearms are incredibly easy to install since they... ... more

Radical Firearms Complete Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 12in RPR M-LOK A2 Flash Hider Black CFU16-223W-SS-12RPR

Radical Firearms Complete Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 12in RPR M-LOK A2 Flash Hider Black CFU16-223W-SS-12RPR. Complete upper assemblies include: Bolt Carrier Group Bolt Carrier Magazine Housing Gas Tube Flash Hider... ... more

Radical Firearms Complete Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 12in MHR M-LOK A2 Flash Hider Black CFU16-223W-SS-12MHR

Radical Firearms Complete Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 12in MHR M-LOK A2 Flash Hider Black CFU16-223W-SS-12MHR. Complete upper assemblies include: Bolt Carrier Group Bolt Carrier Magazine Housing Gas Tube Flash Hider... ... more

Radical Firearms Complete Upper Assembly 18in 223 Wylde 416R HBAR Contour 1/8 Twist 15in MHR M-LOK A2 Flash Hider Black CFU18-223W-SS-15MHR

Radical Firearms Complete Upper Assembly 18in 223 Wylde 416R HBAR Contour 1/8 Twist 15in MHR M-LOK A2 Flash Hider Black CFU18-223W-SS-15MHR. Radical Firearms choose high quality barrels for their upper assemblies pairing that with a robust free... ... more

Radical Firearms RF Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 12in RPR M-LOK A2 Flash Hider Black FU16-223W-SS-12RPR

Radical Firearms RF Upper Assembly 16in 223 Wylde 416R HBAR Contour 1/8 Twist 12in RPR M-LOK A2 Flash Hider Black FU16-223W-SS-12RPR. Based upon the classic American platform and design the upper is made with the time proven recipe of sturdy bolt... ... more

Radical Firearms AR-15 Complete Upper Assembly 16in 7.62x39 4150V HBAR Contour 1/10 Twist 12in RPR M-LOK A2 Flash Hider Black CFU16-7.62X39HBAR-12RPR

Radical Firearms AR-15 Complete Upper Assembly 16in 7.62x39 4150V HBAR Contour 1/10 Twist 12in RPR M-LOK A2 Flash Hider Black CFU16-7.62X39HBAR-12RPR. This fully mil-spec compliant receiver provides a high-quality upper for any level budget or... ... more

Radical Firearms Complete Upper Assembly 16in 5.56 SOCOM 1/7 Twist 12in RPR M-LOK A2 Flash Hider Black CFU16-5.56SOC-12RPR

Radical Firearms Complete Upper Assembly 16in 5.56 SOCOM 1/7 Twist 12in RPR M-LOK A2 Flash Hider Black CFU16-5.56SOC-12RPR. 5.56 SOCOM Upper Assembly. These AR15 Upper Receivers crafted by Radical Firearms are incredibly easy to install since they... ... more

Radical Firearms AR-15 Complete Upper Assembly 16in 7.62x39 4150V HBAR Contour 1/10 Twist 12in MHR M-LOK A2 Flash Hider Black CFU16-7.62X39HBAR-12MHR

Radical Firearms AR-15 Complete Upper Assembly 16in 7.62x39 4150V HBAR Contour 1/10 Twist 12in MHR M-LOK A2 Flash Hider Black CFU16-7.62X39HBAR-12MHR. This fully mil-spec compliant receiver provides a high-quality upper for any level budget or... ... more

Radical Firearms RF Upper Assembly 16in 5.56 SOCOM 1/7 Twist 12in RPR M-LOK Zero Impulse Black FU16-5.56SOC-12RPR-ZS

Radical Firearms RF Upper Assembly 16in 5.56 SOCOM 1/7 Twist 12in RPR M-LOK Zero Impulse Black FU16-5.56SOC-12RPR-ZS. Radical Firearms builds all of its barrel assemblies in-house. This allows us to provide customers with a precision-machined made... ... more

Aero Precision Complete Upper Receiver M4E1-E 18in .223 Wylde Fluted Barrel EM-15 Handguard Gen 2 Anodized Black APAR640232M51

Aero Precision Complete Upper Receiver M4E1-E 18in .223 Wylde Fluted Barrel EM-15 Handguard Gen 2 Anodized Black APAR640232M51. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip and visual appeal... ... more

Aero Precision Complete Upper Receiver M4E1-T .223 16in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M50

Aero Precision Complete Upper Receiver M4E1-T .223 16in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M50. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to your... ... more

Aero Precision Complete Upper Receiver M4E1-T .223 16in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth APAR700315M50

Aero Precision Complete Upper Receiver M4E1-T .223 16in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth APAR700315M50. The S-ONE line of handguards are designed with size and weight in mind providing the perfect... ... more

Aero Precision M4E1-T Complete Upper Receiver Threaded 5.56x45mm Mid Pencil 14.7in Barrel ATLAS S-ONE 12in Handguard M-LOK Anodized Black

Aero Precision M4E1-T Complete Upper Receiver Threaded 5.56x45mm Mid Pencil 14.7in Barrel ATLAS S-ONE 12in Handguard M-LOK Anodized Black. 56 Mid Pencil Barrel w/ ATLAS S-ONE Handguard Complete Upper Receiver. These AR15 Upper Receivers built by... ... more

Aero Precision Complete Upper Receiver M4E1-T .223 18in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth APAR700315M51

Aero Precision Complete Upper Receiver M4E1-T .223 18in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth APAR700315M51. 223 Wylde fluted barrel complete with an ATLAS handguard The upper receiver is enhanced with new... ... more

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Carbine Length Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700304M32

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Carbine Length Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700304M32. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to... ... more

Aero Precision Complete Upper Receiver M4E1-T 20in 5.56 Rifle Length Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth APAR700315M48

Aero Precision Complete Upper Receiver M4E1-T 20in 5.56 Rifle Length Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth APAR700315M48. Aero Precision built these AR Handguards & Barrels with their ATLAS S-ONE Handguard and 20in 5.56... ... more