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

Stag Arms AR-15 Tactical Upper Receiver 5.56x45mm NATO 16in Barrel Maryland Compliant Hanson Profile 1-7 Twist 1/2x28 Left Hand VG6 Delta Nitride

Stag Arms AR-15 Tactical Upper Receiver 5.56x45mm NATO 16in Barrel Maryland Compliant Hanson Profile 1-7 Twist 1/2x28 Left Hand VG6 Delta Nitride. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics... ... 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 Assembly 5.56x45mm NATO 10.5in Carbine Government M-LOK 1-7 1/2x28 Diamond Cut Free-Float Handgrd Slanted

OP Exclusive Moriarti AR-15 Upper Receiver Assembly 5.56x45mm NATO 10.5in Carbine Government M-LOK 1-7 1/2x28 Diamond Cut Free-Float Handgrd Slanted. 5in 5.56x45mm NATO Upper Receiver Assembly Slanted Muzzle was made in order to be the best item for... ... 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

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

DEMO 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

DEMO 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. You need it. If you're ready to enjoy the awesomeness that is an AR Pistol the TRYBE Defense AR-15 16"... ... 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

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

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

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

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

Del-Ton Pre-Ban Heavy Profile Rifle Complete Upper Receiver 5.56x45mm NATO 16in Mid-Length Black RKT104

Del-Ton Pre-Ban Heavy Profile Rifle Complete Upper Receiver 5.56x45mm NATO 16in Mid-Length Black RKT104. Del-Ton brings this rifle kit with a complete upper assembly that has been head-spaced and test-fired. Includes all buttstock components and a... ... 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

Aero Precision M4E1 Mid Barrel Complete Upper Receiver w/Flash Hider AR-15 5.56x45mm NATO 16in Mid Length Barrel 12in 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 12in 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

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

Stag Arms AR-15 Tactical Upper Receiver 5.56x45mm NATO 16in Barrel Hanson Profile 1-7 Twist 1/2x28 Left Hand VG6 Gamma Black STAG15110144

Stag Arms AR-15 Tactical Upper Receiver 5.56x45mm NATO 16in Barrel Hanson Profile 1-7 Twist 1/2x28 Left Hand VG6 Gamma Black STAG15110144. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics and... ... 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

Stag Arms AR-15 Tactical Upper Receiver 5.56x45mm NATO 7.5in Barrel GOV-CMV Profile 1-7 Twist 1/2x28 Left Hand VG6 Delta Nitride FDE STAG15111922

Stag Arms AR-15 Tactical Upper Receiver 5.56x45mm NATO 7.5in Barrel GOV-CMV Profile 1-7 Twist 1/2x28 Left Hand VG6 Delta Nitride FDE STAG15111922. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics... ... 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

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

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

Stag Arms AR-15 Upper Right Hand Receiver 5.56 NATO 16in Barrel NJ Compliant M4 Profile 1-7 Twist 1/2 x 28 Thread Compensator Black STAG15101113

Stag Arms AR-15 Upper Right Hand Receiver 5.56 NATO 16in Barrel NJ Compliant M4 Profile 1-7 Twist 1/2 x 28 Thread Compensator Black STAG15101113. Made to mil-spec standards this upper satisfies the need for a standard GI carbine. Featuring a 5.56x45mm... ... 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

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

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 16in Barrel Maryland Compliant Hanson Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Nitride

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

Stag Arms AR-15 Tactical Left Hand Upper Receiver 5.56 NATO 16in Barrel Hanson Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Nitride Black STAG15110142

Stag Arms AR-15 Tactical Left Hand Upper Receiver 5.56 NATO 16in Barrel Hanson Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Nitride Black STAG15110142. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights... ... 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

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. 56x45mm NATO Upper Receiver with Flash Hider Assembly was made to function as the ideal item for any... ... 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

Radical Firearms Complete Upper Assembly 16in 5.56 SOCOM 1/7 Twist 15in RPR M-LOK A2 Flash Hider Black CFU16-5.56SOC-15RPR

Radical Firearms Complete Upper Assembly 16in 5.56 SOCOM 1/7 Twist 15in RPR M-LOK A2 Flash Hider Black CFU16-5.56SOC-15RPR. 5.56 SOCOM Upper Assembly. These AR15 Upper Receivers crafted by Radical Firearms are incredibly easy to install since they come... ... 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 come... ... 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