Luth-AR Lightweight Complete Upper Barrel Receiver Assembly 5.56mm 26in 16in Light Weight Carbine 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized

Tiger Rock AR-15 Complete Upper Receiver 5.56mm 24in 16in Barrel M4 Carbine 1x8 Twist 1/2x28 Thread Quad Rail 15in M-Lok Handguard Brake Nitride

Tiger Rock AR-15 Complete Upper Receiver 5.56mm 24in 16in Barrel M4 Carbine 1x8 Twist 1/2x28 Thread Quad Rail 15in M-Lok Handguard Brake Nitride. Each part conforms to Mil-Spec dimensions and is made from quality materials to ensure accuracy and... ... more

Luth-AR Lightweight Kit Minus Lower Receiver w/ Fixed Stock 5.56mm 26in 16in Light Weight Carbine 1x9 1/2x28Picatinny Key MOD A2 Flash Hider Anodized

Luth-AR Lightweight Kit Minus Lower Receiver w/ Fixed Stock 5.56mm 26in 16in Light Weight Carbine 1x9 1/2x28Picatinny Key MOD A2 Flash Hider Anodized. 56 Lightweight Minus Lower Receiver Kit you can build out an entirely new AR except for the stripped... ... more

Luth-AR Mark 12 Kit Minus Lower Receiver w/ Collapsible Stock 5.56mm 27in 18in Government Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized

Luth-AR Mark 12 Kit Minus Lower Receiver w/ Collapsible Stock 5.56mm 27in 18in Government Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized. 56 Complete Mark 12 Barrel Kit features an 18 inch Mark 12 5.56mm barrel and a 15in KeyMod short... ... more

Luth-AR Bull Rifle Kit Minus Lower Receiver w/ Collapsible Stock .223 26in 16in Bull Carbine 1x9 1/2x28 Picatinny KeyMod A2 Anodized Manganese

Luth-AR Bull Rifle Kit Minus Lower Receiver w/ Collapsible Stock .223 26in 16in Bull Carbine 1x9 1/2x28 Picatinny KeyMod A2 Anodized Manganese. Specifications for Luth-AR .223 Bull Rifle Kit Minus Lower Receiver w/ Collapsible Stock: Manufacturer:... ... more

Tiger Rock AR-15 Barrel BCG LPK and Rogers Stock 5.56mm 17in 16in Barrel M4 A2/Gov Carbine 1x8 1/2x28 15in M-Lok Handguard Brake Nitride Anodized

Tiger Rock AR-15 Barrel BCG LPK and Rogers Stock 5.56mm 17in 16in Barrel M4 A2/Gov Carbine 1x8 1/2x28 15in M-Lok Handguard Brake Nitride Anodized. This combo kit includes everything you need to complete your upper receiver build and is sure to provide... ... more

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 145in Mid-Length Barrel 1-7 Twist 1/2x28 Thread ATLAS R-ONE Handguard w/VG6 Precision

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 145in Mid-Length Barrel 1-7 Twist 1/2x28 Thread ATLAS R-ONE Handguard w/VG6 Precision. The R-ONE handguards are designed with size and weight in mind while still providing plenty of... ... more

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 145in Mid-Length Barrel 1-7 Twist 1/2x28 Thread ATLAS R-ONE Handguard FDE Cerakote

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 145in Mid-Length Barrel 1-7 Twist 1/2x28 Thread ATLAS R-ONE Handguard FDE Cerakote. The R-ONE handguards are designed with size and weight in mind while still providing plenty of real-estate... ... more

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 145in Mid-Length Barrel 1-7 Twist 1/2x28 Thread ATLAS R-ONE Handguard Black Anodized

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 145in Mid-Length Barrel 1-7 Twist 1/2x28 Thread ATLAS R-ONE Handguard Black Anodized. The R-ONE handguards are designed with size and weight in mind while still providing plenty of real-estate... ... more

Lightweight Kit Minus Lower Receiver w/ Col. Stock 5.56mm 26in 16in Light Weight Carbine 1x9 1/2x28Picatinny Key MOD A2 Flash Hider Anodized Man.

Lightweight Kit Minus Lower Receiver w/ Col. Stock 5.56mm 26in 16in Light Weight Carbine 1x9 1/2x28Picatinny Key MOD A2 Flash Hider Anodized Man.. 56 Lightweight Minus Lower Receiver Kit you can build out an entirely new AR except for the stripped... ... more

Luth-AR Bull Rifle Kit Minus Lower Receiver w/Fixed Stock .223 26in 16in Bull Carbine 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese

Luth-AR Bull Rifle Kit Minus Lower Receiver w/Fixed Stock .223 26in 16in Bull Carbine 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese. 223 Rem Fluted Bull Barrel Upper with 15in KeyMod Palm Handguard and Complete Lower Parts Kit comes... ... more

Luth-AR Bull Rifle Kit Minus Lower Receiver w/Fixed Stock .223 27in 18in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese

Luth-AR Bull Rifle Kit Minus Lower Receiver w/Fixed Stock .223 27in 18in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese. 223 Rem Fluted Bull Barrel Upper with 15in KeyMod Palm Handguard and Complete Lower Parts Kit comes with... ... more

Luth-AR Lightweight Complete Upper Barrel Receiver Assembly 5.56mm 20in 11.5in HBAR Carbine 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized

Luth-AR Lightweight Complete Upper Barrel Receiver Assembly 5.56mm 20in 11.5in HBAR Carbine 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized. 56mm Lightweight barrel made from 4150 Chrome Molly with a 1-9 twist mated to Luth-AR A3 Flattop receiver... ... more

Luth-AR Complete Upper Receiver Assembly .223 27in 18in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese Phosphate Silver/

Luth-AR Complete Upper Receiver Assembly .223 27in 18in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese Phosphate Silver/. 223 Caliber fluted bull barrel made from 416 SST with a 1-9 twist mated to Luth-AR A3 Flattop receiver... ... more

Luth-AR Complete Upper Receiver Assembly .223 31in 24in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese Phosphate Silver/

Luth-AR Complete Upper Receiver Assembly .223 31in 24in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese Phosphate Silver/. 223 Caliber fluted bull barrel made from 416 SST with a 1-9 twist mated to Luth-AR A3 Flattop receiver... ... more

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 Moly Steel Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 Moly Steel Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Flash. 56 NATO Complete Upper Receiver w/ Rifle Lower Parts Kit is packed with high-quality parts that will... ... more

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 Moly Steel Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 Moly Steel Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Flash. 56 NATO Complete Upper Receiver w/ Rifle Lower Parts Kit is packed with high-quality parts that will... ... more

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 Moly Steel Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 Moly Steel Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Flash. 56 NATO Complete Upper Receiver w/ Rifle Lower Parts Kit is packed with high-quality parts that will... ... more

XTS Complete Upper Receiver w/o BCG w/ 12in Ce Rail AR-15 .223/5.56 24.75in 16in Barrel Carbine 1-8 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride

XTS Complete Upper Receiver w/o BCG w/ 12in Ce Rail AR-15 .223/5.56 24.75in 16in Barrel Carbine 1-8 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With... ... more

Geissele Super Duty Complete Upper Receiver 5.56mm 16in Barrel Carbine Length 1-7 Twist Geissele Sparkout Flash Hider Green 16in 08-220ODG

Geissele Super Duty Complete Upper Receiver 5.56mm 16in Barrel Carbine Length 1-7 Twist Geissele Sparkout Flash Hider Green 16in 08-220ODG. This 16" complete upper chambered in 5.56mm features a Nanoweapon coated Surefire Closed-Tine Flash Hider... ... more

Luth-AR Bull Rifle Kit Minus Lower Receiver w/Fixed Stock .223 29in 20in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese

Luth-AR Bull Rifle Kit Minus Lower Receiver w/Fixed Stock .223 29in 20in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese. 223 Rem Fluted Bull Barrel Upper with 15in KeyMod Palm Handguard and Complete Lower Parts Kit comes with... ... more

Luth-AR Bull Rifle Kit Minus Lower Receiver w/Fixed Stock .223 31in 24in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese

Luth-AR Bull Rifle Kit Minus Lower Receiver w/Fixed Stock .223 31in 24in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese. 223 Rem Fluted Bull Barrel Upper with 15in KeyMod Palm Handguard and Complete Lower Parts Kit comes with... ... more

LWRCI Complete Di Upper Receiver 5.56mm 16 inch Barrel 1-7 Twist Extended M-LOK Handguard Black 16in ICDIU5B16MLXS

LWRCI Complete Di Upper Receiver 5.56mm 16 inch Barrel 1-7 Twist Extended M-LOK Handguard Black 16in ICDIU5B16MLXS. 1in Cold Hammer Forged NiCorr-treated barrel sporting the weight reducing spiral fluting mated to a Monoforge Upper receiver. The... ... more

XTS Complete Upper Receiver w/o BCG w/ Ce Rail AR-15 .223/5.56 24.75in 16in Barrel Carbine 1-8 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride

XTS Complete Upper Receiver w/o BCG w/ Ce Rail AR-15 .223/5.56 24.75in 16in Barrel Carbine 1-8 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With an... ... more

Luth-AR Mark 12 Complete Upper Barrel Receiver Assembly 5.56 mm 27in 18in Government Rifle 1x9 1/2x28 PicatinnyKey MOD A2 Flash Hider Anodized

Luth-AR Mark 12 Complete Upper Barrel Receiver Assembly 5.56 mm 27in 18in Government Rifle 1x9 1/2x28 PicatinnyKey MOD A2 Flash Hider Anodized. 56mm Lightweight barrel made from 4150 Chrome Molly with a 1-9 twist mated to Luth-AR A3 Flattop receiver... ... more

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 16in 1-7 Twist 1/2x28 Thread Black 556N16CUA

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 16in 1-7 Twist 1/2x28 Thread Black 556N16CUA. 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 that... ... more

Ghost Firearms Vital Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard A2 Birdcage

Ghost Firearms Vital Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard A2 Birdcage. 56 Complete Upper Receiver w/ Rifle Lower Parts Kit is a high-quality kit that includes everything you... ... more

Aero Precision M4E1-T Complete Upper Receiver 5.56mm 11.5in Carbine Length R-One M-LOK Handguard Black APAR712703M29

Aero Precision M4E1-T Complete Upper Receiver 5.56mm 11.5in Carbine Length R-One M-LOK Handguard Black APAR712703M29. The R-ONE line of handguards are designed with size and weight in mind providing the perfect addition to your lightweight build. The... ... more

Del-Ton 16in Light Weight Flat Top Barrel Assembly w/15in MLOK 5.56mm Caliber 1-7 Twist Rate Carbine Length DT1040

Del-Ton 16in Light Weight Flat Top Barrel Assembly w/15in MLOK 5.56mm Caliber 1-7 Twist Rate Carbine Length DT1040. 56x45mm NATO Barrel Length: 16 in Gas System Length: Carbine Length Barrel Twist Rate: 1-7 Muzzle Device: A2 Flash Hider Color: Black... ... more

Aero Precision M4E1-T Complete Upper Receiver 5.56mm 11.5in Carbine Length R-One M-LOK Handguard FDE APAR712713M29

Aero Precision M4E1-T Complete Upper Receiver 5.56mm 11.5in Carbine Length R-One M-LOK Handguard FDE APAR712713M29. The R-ONE line of handguards are designed with size and weight in mind providing the perfect addition to your lightweight build. The... ... more

Luth-AR A3 Complete Upper Receiver Assembled 16in Lightweight Barrel 5.56mm 1-7 Twist 1/2 x 28 Thread A2 Flash Hider w/ Key MOD Palm Handguard Black

Luth-AR A3 Complete Upper Receiver Assembled 16in Lightweight Barrel 5.56mm 1-7 Twist 1/2 x 28 Thread A2 Flash Hider w/ Key MOD Palm Handguard Black. 5? M4 SOCOM profile barrel with F Marked Front Sight Base 5.56mm made from 4150 CMV steel with a 1-7?... ... more

Luth-AR 16 in Light Weight Complete Upper Barrel Receiver Assembly - 5.56 1x9 twist MLOK Free Float Handguard Black 16 BAA3-L16M

Luth-AR 16 in Light Weight Complete Upper Barrel Receiver Assembly - 5.56 1x9 twist MLOK Free Float Handguard Black 16 BAA3-L16M. . Established by using some of the most heavy duty and long lasting resources around these AR15 Upper Receivers through... ... more

Ghost Firearms Elite Complete Upper Receiver 7.62x39 16in Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14in M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 7.62x39 16in Carbine Length 4150 Light HBAR Barrel 1-10 Twist 14in M-LOK Free Float Hand Guard A2 Flash. 62 Upper Receiver delivers complete AR comfort and compatibility. These AR15 Upper Receivers by Ghost... ... more

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 Chrome Moly Steel Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 Chrome Moly Steel Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2. 56 NATO Complete Upper Receiver w/ Rifle Lower Parts Kit is packed with high-quality parts that will... ... more

Moriarti Complete Upper Receiver AR-15 5.56 Nato 10.5 inch Barrel Government Contour Carbine Length 1x7 Twist 1/2X28 Thread M-LOK Handguard Mini

Moriarti Complete Upper Receiver AR-15 5.56 Nato 10.5 inch Barrel Government Contour Carbine Length 1x7 Twist 1/2X28 Thread M-LOK Handguard Mini. 5 inch 5.56 Nato Upper Receiver Assembly then you've showed up at the absolute correct place.. Established... ... more

Luth-AR Complete Upper Receiver Assembly .223 29in 20in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese Phosphate Silver/

Luth-AR Complete Upper Receiver Assembly .223 29in 20in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese Phosphate Silver/. 223 Caliber fluted bull barrel made from 416 SST with a 1-9 twist mated to Luth-AR A3 Flattop receiver... ... more

Moriarti Complete Upper Receiver AR-15 5.56 Nato 16 inch Barrel M4 Carbine Length 1x7 Twist 1/2x28 Thread M-LOK Handguard Triport Hardcoat Anodized

Moriarti Complete Upper Receiver AR-15 5.56 Nato 16 inch Barrel M4 Carbine Length 1x7 Twist 1/2x28 Thread M-LOK Handguard Triport Hardcoat Anodized. 56 Nato 16 M4 Carbine Upper Assembly with a 15 M-lok rail and triport muzzle brake is a product... ... more

Luth-AR 16 in Light Weight Complete Upper Barrel Receiver Assembly - 5.56 1x7 twist M-LOK Free Float Handguard Black 16 BA-L16-7M

Luth-AR 16 in Light Weight Complete Upper Barrel Receiver Assembly - 5.56 1x7 twist M-LOK Free Float Handguard Black 16 BA-L16-7M. . Established by using some of the most heavy duty and long lasting resources around these AR15 Upper Receivers through... ... more