OP Exclusive Moriarti AR-15 Pencil Upper Receiver Assembly 5.56x45mm NATO 16in Mid M-LOK 1-7 Twist 1/2x28 Thread Diamond Cut Free-Float Handgrd Tri

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid-Length Barrel 15in M-LOK ATLAS R-ONE Handguard Anodized

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid-Length Barrel 15in M-LOK ATLAS R-ONE Handguard Anodized. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver... ... more

TRYBE Defense Complete Upper Receiver AR-15 5.56x45mm NATO 16in 5R Barrel 1-7 Twist 15in M-LOK Rail A2 Flash Hider BCG and CH Nitride Black UPPER16556

TRYBE Defense Complete Upper Receiver AR-15 5.56x45mm NATO 16in 5R Barrel 1-7 Twist 15in M-LOK Rail A2 Flash Hider BCG and CH Nitride Black UPPER16556. You need it. If you're ready to enjoy the awesomeness that is an AR Pistol the TRYBE Defense AR-15... ... more

OP Exclusive Moriarti AR-15 Upper Receiver Assembly 5.56x45mm 10.5in Carbine Government M-LOK 1-7 1/2x28 Diamond Cut Free-Float Handgrd A2 Flash Hider

OP Exclusive Moriarti AR-15 Upper Receiver Assembly 5.56x45mm 10.5in Carbine Government M-LOK 1-7 1/2x28 Diamond Cut Free-Float Handgrd A2 Flash Hider. 5in 5.56x45mm NATO Upper Receiver Assembly A2 Flash Hider then you've found yourself in the ideal... ... more

TRYBE Defense Complete Upper Receiver AR-15 16in M-LOK .223 Wylde 5.56x45mm NATO Black w/ Charging Handle and BCG UPPER16223

TRYBE Defense Complete Upper Receiver AR-15 16in M-LOK .223 Wylde 5.56x45mm NATO Black w/ Charging Handle and BCG UPPER16223. You need it. If you're ready to enjoy the awesomeness that is an AR Rifle the TRYBE Defense AR-15 16" Semi-Complete Upper... ... more

OP Exclusive Moriarti AR-15 Upper Receiver Assembly 5.56x45mm NATO 16in Mid M-LOK 1-7 Twist 1/2x28 Pinned Gas Block Diamond Cut Free-Float Handgrd A2

OP Exclusive Moriarti AR-15 Upper Receiver Assembly 5.56x45mm NATO 16in Mid M-LOK 1-7 Twist 1/2x28 Pinned Gas Block Diamond Cut Free-Float Handgrd A2. 56 NATO Upper Receiver Assembly Pinned Gas Block was made to function as the ideally suited item for... ... more

Alpha Shooting Sports SSR15 Upper Receiver 5.56x45mm NATO 16in Hybrid Profile Mid Length 1-8 Twist Free Floating M-LOK Handguard A2 Flash Hider

Alpha Shooting Sports SSR15 Upper Receiver 5.56x45mm NATO 16in Hybrid Profile Mid Length 1-8 Twist Free Floating M-LOK Handguard A2 Flash Hider. 56x45mm NATO Upper Receiver with Flash Hider Assembly. Established working with several of the most... ... more

DEMO OP Exclusive Moriarti AR-15 Upper Receiver Assembly 5.56x45mm NATO 10.5in Carbine Government M-LOK 1-7 Twist 1/2x28 Diamond Cut Free-Float

DEMO OP Exclusive Moriarti AR-15 Upper Receiver Assembly 5.56x45mm NATO 10.5in Carbine Government M-LOK 1-7 Twist 1/2x28 Diamond Cut Free-Float. 5in 5.56x45mm NATO Upper Receiver Assembly Tri Port was created in order to function as the best product... ... more

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid Pencil Barrel 15in M-LOK ATLAS R-ONE Handguard Anodized

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid Pencil Barrel 15in M-LOK ATLAS R-ONE Handguard Anodized. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver... ... more

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid Pencil Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid Pencil Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver... ... more

LaRue Tactical Complete AR-15 Match Grade Upper Receiver 16in 5.56x45mm NATO 1-8 Twist A2 Flash Hider Black LT-015

LaRue Tactical Complete AR-15 Match Grade Upper Receiver 16in 5.56x45mm NATO 1-8 Twist A2 Flash Hider Black LT-015. 56 LaRue Upper Its widely-recognized that were crafting the most accurate rifles on the planet. But if youve got any other type of AR-15... ... more

Daniel Defense Upper Receiver with Flash Hider Assembly M4A1 RIII URG 5.56x45mm NATO 25 inch 14.5 inch Barrel M4 Profile Mid Length 1-7 Twist 1/2x28

Daniel Defense Upper Receiver with Flash Hider Assembly M4A1 RIII URG 5.56x45mm NATO 25 inch 14.5 inch Barrel M4 Profile Mid Length 1-7 Twist 1/2x28. 5 inch Cold Hammer Forged M4 Profile barrel with a permanently attached Daniel Defense Flash... ... more

OP Exclusive Moriarti AR-15 Upper Receiver 300 Blackout 16in Pistol Medium M-LOK 1-7 Twist 5/8x24 Thread Diamond Cut Free-Float Handguard Triport

OP Exclusive Moriarti AR-15 Upper Receiver 300 Blackout 16in Pistol Medium M-LOK 1-7 Twist 5/8x24 Thread Diamond Cut Free-Float Handguard Triport. These AR15 Upper Receivers from the professional product professionals at Moriarti are made by using... ... more

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 14.7in 5.56 Mid Pencil Barrel 12in M-LOK ATLAS S-ONE Handguard

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 14.7in 5.56 Mid Pencil Barrel 12in M-LOK ATLAS S-ONE Handguard. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver you can... ... more

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 14.7in 5.56 Mid Pencil Barrel 12in M-LOK ATLAS R-ONE Handguard

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 14.7in 5.56 Mid Pencil Barrel 12in M-LOK ATLAS R-ONE Handguard. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver you can... ... more

Daniel Defense Upper Receiver with Flash Hider Assembly DD4 RIII URG 5.56x45mm NATO 25 inch 16 inch Barrel Government Profile Mid Length 1-7 Twist

Daniel Defense Upper Receiver with Flash Hider Assembly DD4 RIII URG 5.56x45mm NATO 25 inch 16 inch Barrel Government Profile Mid Length 1-7 Twist. It features a 12.5 inch lightweight RIS III railmodeled after the revolutionary RIS II two-piece... ... more

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid-Length Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 16in 5.56 Mid-Length Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver... ... more

Aero Precision M4E1 Mid Barrel Complete Upper Receiver w/Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 12in M-LOK Handguard No BCG/CH Magpul

Aero Precision M4E1 Mid Barrel Complete Upper Receiver w/Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 12in M-LOK Handguard No BCG/CH Magpul. 56 Mid Barrel Complete Upper Receiver with Flash Hider is an amazing option. Designed to give you... ... more

Aero Precision M4E1 Mid Barrel Complete Upper Receiver w/Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 15in M-LOK Handguard No BCG/CH Magpul

Aero Precision M4E1 Mid Barrel Complete Upper Receiver w/Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 15in M-LOK Handguard No BCG/CH Magpul. 56 Mid Barrel Complete Upper Receiver with Flash Hider is an amazing option. Designed to give you... ... more

Aero Precision M4E1 Mid Barrel Complete Upper Receiver w/Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 12in M-LOK Handguard No BCG/CH

Aero Precision M4E1 Mid Barrel Complete Upper Receiver w/Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 12in M-LOK Handguard No BCG/CH. 56 Mid Barrel Complete Upper Receiver with Flash Hider is an amazing option. Designed to give you the full... ... more

OP Exclusive Moriarti AR-15 Upper Receiver 300 Blackout 10.5in Pistol Medium M-LOK 1-7 Twist 5/8x24 Thread Diamond Cut Free-Float Handguard A2 Flash

OP Exclusive Moriarti AR-15 Upper Receiver 300 Blackout 10.5in Pistol Medium M-LOK 1-7 Twist 5/8x24 Thread Diamond Cut Free-Float Handguard A2 Flash. 5in 300 Blackout Upper Receiver A2 Flash Hider then you've come to the absolute correct location..... ... more

TRYBE Defense Semi-Complete Upper Receiver AR-15 16in M-LOK .223 Wylde 5.56x45mm NATO Black SCUPPER16223

TRYBE Defense Semi-Complete Upper Receiver AR-15 16in M-LOK .223 Wylde 5.56x45mm NATO Black SCUPPER16223. 223 and 5.56 has everything you need Featuring an ultra-durable high-performance 4140 CMV steel barrel with 5R rifling and a 1:8" twist a 15"... ... more

Daniel Defense Upper Receiver with Flash Hider Assembly DD4 RIII URG 5.56x45mm NATO 25 inch 16 inch Barrel Government Profile Mid-length 1-7 Twist

Daniel Defense Upper Receiver with Flash Hider Assembly DD4 RIII URG 5.56x45mm NATO 25 inch 16 inch Barrel Government Profile Mid-length 1-7 Twist. It features a 12.5 inch lightweight RIS III railmodeled after the revolutionary RIS II two-piece... ... more

Aero Precision M4E1 Complete Upper Receiver AR-15 5.56x45mm NATO 14.5 in Mid Length Barrel 12 in M-LOK Handguard No BCG/CH Magpul Cerakote Flat Dark

Aero Precision M4E1 Complete Upper Receiver AR-15 5.56x45mm NATO 14.5 in Mid Length Barrel 12 in M-LOK Handguard No BCG/CH Magpul Cerakote Flat Dark. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip... ... more

Faxon Firearms Ascent Upper Receiver with Flash Hider 5.56x45mm NATO 16 inch Barrel SOCOM Profile Mid Length 1-8 Twist 1/2x28 Thread A2 Birdcage Flash

Faxon Firearms Ascent Upper Receiver with Flash Hider 5.56x45mm NATO 16 inch Barrel SOCOM Profile Mid Length 1-8 Twist 1/2x28 Thread A2 Birdcage Flash. 56 upper receiver group that will be a drop-in fit to complete your newest AR-15 build or as a... ... more

Angstadt Arms AR-15 Complete Upper Assembly with Flash Hider 5.56x45mm 16 inch Barrel M4 Profile 1-7 Twist 1/2x28 Black Nitride Black AAUT056016

Angstadt Arms AR-15 Complete Upper Assembly with Flash Hider 5.56x45mm 16 inch Barrel M4 Profile 1-7 Twist 1/2x28 Black Nitride Black AAUT056016. 56/.233 upper receiver assembly with 16 inch barrel and 15 inch hand guard. Ready to run with any AR-15... ... more

Aero Precision M4E1 Mid Barrel Complete Upper Receiver w/Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 15in Quad Rail Handguard No BCG/CH

Aero Precision M4E1 Mid Barrel Complete Upper Receiver w/Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 15in Quad Rail Handguard No BCG/CH. 56 Mid Barrel Complete Upper Receiver with Flash Hider is an amazing option. Designed to give you the... ... more

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 16in Carbine Length 4150 M4 Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Birdcage

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 16in Carbine Length 4150 M4 Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Birdcage. 56 Upper Receiver. Ghost Firearms machined these Mil-Spec AR15 Upper Receivers from 7075 T6 aluminum... ... more

Tiger Rock Complete Upper Receiver AR-15 5.56 NATO 16in Mid Length 1-7 Twist w/ 16in Keymod Handguard Black Large UB15-FKM16

Tiger Rock Complete Upper Receiver AR-15 5.56 NATO 16in Mid Length 1-7 Twist w/ 16in Keymod Handguard Black Large UB15-FKM16. The Upper Receiver 16in Barrel and Bolt Carrier Group are made in specialized factories Included is a 16in Free Float Keymod... ... more

Aero Precision Complete Upper Receiver M4E1-T 5.56x45mm NATO 16in Pencil Mid Length 1 in 7 1/2 x 28 15in A2 Flash Hider Cerakote FDE APAR700715M39

Aero Precision Complete Upper Receiver M4E1-T 5.56x45mm NATO 16in Pencil Mid Length 1 in 7 1/2 x 28 15in A2 Flash Hider Cerakote FDE APAR700715M39. The R-ONE handguards are designed with size and weight in mind while still providing plenty of... ... more

Stag Arms AR-15 Upper Right Hand Receiver 5.56 NATO 16in Barrel M4 Profile 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider Black STAG15101111

Stag Arms AR-15 Upper Right Hand Receiver 5.56 NATO 16in Barrel M4 Profile 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider Black STAG15101111. Made to mil-spec standards this upper satisfies the need for a standard GI carbine. Featuring a 5.56x45mm... ... more

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 16in Barrel Hanson Profile 1-7 Twist 1/2 x 28 Thread VG6 Gamma Black STAG15100144

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 16in Barrel Hanson Profile 1-7 Twist 1/2 x 28 Thread VG6 Gamma Black STAG15100144. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics and... ... more

Stag Arms AR-15 Upper Left Hand Receiver 5.56 NATO 16in Barrel Maryland Compliant HBAR Profile 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider Black

Stag Arms AR-15 Upper Left Hand Receiver 5.56 NATO 16in Barrel Maryland Compliant HBAR Profile 1-7 Twist 1/2 x 28 Thread A2 Birdcage Flash Hider Black. Made to mil-spec standards this upper satisfies the need for a standard GI carbine. Featuring a... ... more

OP Exclusive Moriarti AR-15 Upper Receiver 300 Blackout 10.5in Pistol Medium M-LOK 1-7 Twist 5/8x24 Thread Diamond Cut Free-Float Handguard Triport

OP Exclusive Moriarti AR-15 Upper Receiver 300 Blackout 10.5in Pistol Medium M-LOK 1-7 Twist 5/8x24 Thread Diamond Cut Free-Float Handguard Triport. 5in 300 Blackout Upper Receiver Triport then you have arrived at the right place.. These AR15 Upper... ... more

Aero Precision M4E1 Complete Upper Receiver with Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 15in M-LOK Handguard No BCG/CH Anodized Black

Aero Precision M4E1 Complete Upper Receiver with Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 15in M-LOK Handguard No BCG/CH Anodized Black. 56 Mid Barrel Complete Upper Receiver with Flash Hider is an amazing option. Designed to give you... ... more

OpticsPlanet Exclusive Moriarti AR-9 Upper Receiver Assembly 9mm Luger 16in M-LOK 1-10 Twist Diamond Cut Free-Float Handguard A2 Flash Hider Anodized

OpticsPlanet Exclusive Moriarti AR-9 Upper Receiver Assembly 9mm Luger 16in M-LOK 1-10 Twist Diamond Cut Free-Float Handguard A2 Flash Hider Anodized. Formulated using some of the most extremely robust and long lasting resources in existence these AR15... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With an... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With an... ... more