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 Chromephos FDE STAG15111921

Stag 15 5.56 7.5in Tactical Nitride Upper Receivers - Stag 15 Tactical 7.5" Nitride Upper

Sure, the 5.56 NATO cartridge tends to run better in longer barrels, but there's still plenty of energy from a round fired out of an ultra-compact barrel, and let's be real: there's some serious allure to an ultra-compact AR-style pistol, isn't there?... ... more

Luth-Ar Ar-15 11.5" Government Upper Receiver 2-Pc Handguard 1-7 - Ar-15 11.5" Lightweight Gov'T Pro

11.5" Government profile Barrel Assy w/F marked FSB and 2 pc Handguard 1-7 Twist Starts with Luth-AR's 11.5″ barrel with F Marked Front Sight Base, 5.56 barrel made from 4150 CMV with a 1-7″ twist mated to their A3 Flattop receiver which includes the... ... more

Luth-Ar Ar-15 14.5" Socom Upper Receiver 1-7

Starts with Luth-AR's 14.5″ M4 SOCOM profile barrel with F Marked Front Sight Base, 5.56mm, made from 4150 CMV steel with a 1-7″ twist mated to the A3 Flattop receiver which includes their bolt carrier, charging handle, forward assist and ejection port... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Charcoal Green 55B9331-CG

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Charcoal Green 55B9331-CG. 5 this DISSENT upper group is one of the shortest 5.56mm available to date. Packing all the power of 5.56 in a platform... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Coyote Tan 55B9331-CT

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Coyote Tan 55B9331-CT. 5 this DISSENT upper group is one of the shortest 5.56mm available to date. Packing all the power of 5.56 in a platform this... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Titanium 55B9331-TI

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Titanium 55B9331-TI. 5 this DISSENT upper group is one of the shortest 5.56mm available to date. Packing all the power of 5.56 in a platform this size... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Armor Black 55B9331-AB

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Armor Black 55B9331-AB. 5 this DISSENT upper group is one of the shortest 5.56mm available to date. Packing all the power of 5.56 in a platform this... ... 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

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Midnight Bronze 55B9331-MB

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Midnight Bronze 55B9331-MB. 5 this DISSENT upper group is one of the shortest 5.56mm available to date. Packing all the power of 5.56 in a platform... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Tungsten 55B9331-TNG

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 6.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Tungsten 55B9331-TNG. 5 this DISSENT upper group is one of the shortest 5.56mm available to date. Packing all the power of 5.56 in a platform this... ... more

Dark Storm Industries DS-15 Typhoon Complete Upper Receiver 5.56 NATO 7.5in Barrel M4 Pistol Profile 1-7 Twist 1/2x28 Thread M-Lok Firestorm Type III

Dark Storm Industries DS-15 Typhoon Complete Upper Receiver 5.56 NATO 7.5in Barrel M4 Pistol Profile 1-7 Twist 1/2x28 Thread M-Lok Firestorm Type III. 750 Micro Gas Block andPistol Gas System DSI 7.5" SOCOM 5.56 Threaded 1:7 Nitrite Barrel andDSI... ... 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

XTS Complete Upper Receiver w/o BCG w/ Ce Rail AR-15 .223/5.56 16.5in 7.5in Barrel Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Finish

XTS Complete Upper Receiver w/o BCG w/ Ce Rail AR-15 .223/5.56 16.5in 7.5in Barrel Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Finish. 5in 5.56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. These... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Armor Black 55B8D86-AB

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Armor Black 55B8D86-AB. 5 DISSENT 5.56 is a ton of fun and its rowdy Now that we got that out of our system our ears quit ringing and we arent seeing... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Titanium 55B8D86-TI

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Titanium 55B8D86-TI. 5 DISSENT 5.56 is a ton of fun and its rowdy Now that we got that out of our system our ears quit ringing and we arent seeing... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Silver XTS-CU-7SL

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Silver XTS-CU-7SL. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56.... ... 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

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Red XTS-CU-7RD

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Red XTS-CU-7RD. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56.... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish OD Green

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish OD Green. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. These... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Purple XTS-CU-7PP

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Purple XTS-CU-7PP. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56.... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Tungsten 55B8D86-TNG

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Tungsten 55B8D86-TNG. 5 DISSENT 5.56 is a ton of fun and its rowdy Now that we got that out of our system our ears quit ringing and we arent seeing... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Coyote Tan 55B8D86-CT

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Coyote Tan 55B8D86-CT. 5 DISSENT 5.56 is a ton of fun and its rowdy Now that we got that out of our system our ears quit ringing and we arent seeing... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Bronze XTS-CU-7BR

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Bronze XTS-CU-7BR. 56 16.5in upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56.... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Midnight Bronze 55B8D86-MB

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Midnight Bronze 55B8D86-MB. 5 DISSENT 5.56 is a ton of fun and its rowdy Now that we got that out of our system our ears quit ringing and we arent... ... more

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Charcoal Green 55B8D86-CG

CMMG DISSENT Upper Receiver Mk4 5.56x45mm NATO 10.5in 1-7 Twist 1/2x28 Thread Zeroed Blast Compensator Charcoal Green 55B8D86-CG. 5 DISSENT 5.56 is a ton of fun and its rowdy Now that we got that out of our system our ears quit ringing and we arent... ... more

Stag Arms AR-15 Tactical Upper Receiver .300 AAC Blackout 16in Barrel Hanson Profile 1-7 Twist 1/2x28 Right Hand VG6 Delta FDE STAG15103002

Stag Arms AR-15 Tactical Upper Receiver .300 AAC Blackout 16in Barrel Hanson Profile 1-7 Twist 1/2x28 Right Hand VG6 Delta FDE STAG15103002. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics and... ... 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

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

Moriarti AR-15 Rifle Barrel Threaded 5.56x45mm NATO 10.5 inch Government 1-7 Twist 1/2x28 Thread Nitride Nitride 10.5 inch MAR-556-105-17-CMV

Moriarti AR-15 Rifle Barrel Threaded 5.56x45mm NATO 10.5 inch Government 1-7 Twist 1/2x28 Thread Nitride Nitride 10.5 inch MAR-556-105-17-CMV. 56x45mm NATO Rifle Barrel Threaded was developed to function as the best item for anyone trying to find an... ... more

Jacob Grey Firearms Threaded Rifle Barrel AR Platform AR-15 5.56 NATO/.223 Remington 7.5in Pistol Length 1-7 Twist 1/2x28 Thread Black 556N75B

Jacob Grey Firearms Threaded Rifle Barrel AR Platform AR-15 5.56 NATO/.223 Remington 7.5in Pistol Length 1-7 Twist 1/2x28 Thread Black 556N75B. Depending on what your intended purpose for a particular rifle will be you might want a lightweight short or... ... more

Moriarti AR-15 M4 Barrel Threaded 5.56x45mm NATO 16 inch M4 1-7 Twist 1/2x28 Thread Nitride Black 16 inch MAR-16-M4-556

Moriarti AR-15 M4 Barrel Threaded 5.56x45mm NATO 16 inch M4 1-7 Twist 1/2x28 Thread Nitride Black 16 inch MAR-16-M4-556. 56x45mm NATO M4 Barrel Threaded. Formulated by using some of the most extremely heavy duty and long lasting materials around these... ... more

Faxon Firearms Ascent Upper Receiver with Flash Hider 5.56x45mm NATO 10.5 inch Barrel SOCOM Profile Carbine Length 1-8 Twist 1/2x28 Thread A2 Birdcage

Faxon Firearms Ascent Upper Receiver with Flash Hider 5.56x45mm NATO 10.5 inch Barrel SOCOM Profile Carbine Length 1-8 Twist 1/2x28 Thread A2 Birdcage. 5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly then you have come to the ideal... ... more

Alpha Shooting Sports 5.56x45mm NATO 7.5in Pistol Barrel Heavy Profile 1-8 Twist 1/2x28 Thread Nitride Black ALP75556NIT

Alpha Shooting Sports 5.56x45mm NATO 7.5in Pistol Barrel Heavy Profile 1-8 Twist 1/2x28 Thread Nitride Black ALP75556NIT. 5in 5.56x45mm NATO Threaded Pistol Barrel. Formulated working with some of the very most robust and dependable resources available... ... more

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 7.5in Barrel GOV-CMV Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Chromephos FDE

Stag Arms AR-15 Tactical Right Hand Upper Receiver 5.56 NATO 7.5in Barrel GOV-CMV Profile 1-7 Twist 1/2 x 28 Thread VG6 Delta Chromephos FDE. The handguard provides an uninterrupted picatinny rail along the top which allows room for sights optics and... ... more

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 7.5in 1-7 Twist 1/2x28 Thread Black 556N75CUA

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 7.5in 1-7 Twist 1/2x28 Thread Black 556N75CUA. 56 NATO and built around a 1/7 twist barrel. 7-sided M-LOK Handguard and 7075 Aluminum Upper Receiver. These uppers have a pistol-length gas system... ... 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