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| Best Seller  | Guntec USA AR-15 5.56mm Complete Upper Kit Black GT-C-UPPER-5.5-MLK-MINI Guntec USA AR-15 5.56mm Complete Upper Kit Black GT-C-UPPER-5.5-MLK-MINI. The goal is to distribute excellent quality at an economical value. Specifications for Guntec USA AR-15 5.56mm Complete Upper Kit: Manufacturer: Guntec USA Threads per Inch:... ... more | FREE shipping go to store |
 | TacFire Complete Upper Receiver AR-15 Lower Parts Kit 5.56mm 7.5in Barrel Pistol Length 7in M-LOK Handguard Anodized Black PK556-LPK. Everything you need to build out your 5.56 pistol just add a lower receiver. Includes : 7.5" Barrel Low profile gas... ... more | FREE shipping go to store |
| Best Seller  | 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 | FREE shipping go to store |
 | Aero Ar-15 Assembled Upper 5.56mm Build Kits - Build Kit 5.56mm Assembled Upper 16" Mid-Length 12" H $20 off $200+. Use code SEPT20Why buy a complete rifle, only to discard half (or more) of its parts as you customize it? Money down the drain! Our Aero Precision AR-15 Upper Bundles contain the three core components: receiver, barrel, and an extended M-LOK handguard. You purchase... ... more
Aero Ar-15 Assembled Upper 5.56mm Build Kits - Build Kit 5.56mm Assembled Upper 16" Mid-Length 12" H Why buy a complete rifle, only to discard half (or more) of its parts as you customize it? Money down the drain! Our Aero Precision AR-15 Upper Bundles contain the three core components: receiver, barrel, and an extended M-LOK handguard. You purchase... | go to store |
 | Aero Precision Ar-15 Upper Receiver Assembled No Auto Sear Cut - 5.56mm Assembled Upper Rcvr No Auto If you're looking to take advantage of the huge market for AR-15 components and accessories but aren't legally allowed to possess components that function with an installed auto sear in the AR-15 lower, then the Aero Precision AR-15 Upper Receiver with... ... more
Aero Precision Ar-15 Upper Receiver Assembled No Auto Sear Cut - 5.56mm Assembled Upper Rcvr No Auto If you're looking to take advantage of the huge market for AR-15 components and accessories but aren't legally allowed to possess components that function with an installed auto sear in the AR-15 lower, then the Aero Precision AR-15 Upper Receiver with... | go to store |
 | 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 | FREE shipping go to store |
 | 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 | FREE shipping go to store |
 | Ghost Firearms Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash Can. 56 Complete Upper Receiver w/Pistol Lower Parts Kit is the perfect item for those looking to create a... ... more | FREE shipping go to store |
 | Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash. 56 Complete Upper Receiver w/Pistol Lower Parts Kit is the perfect item for those looking to create a... ... more | FREE shipping go to store |
 | Ghost Firearms Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash Can. 56 Complete Upper Receiver w/Pistol Lower Parts Kit is the perfect item for those looking to create a... ... more | FREE shipping go to store |
 | Tiger Rock AR-15 Rifle Build Kit BCG LPK and Stock Kit 5.56mm 17in 16in Barrel M4 A2/Gov Carbine 1x8 1/2x28 10in Quad Rail Handguard Brake Nitride. Lower receiver is not included. Specifications for Tiger Rock 5.56mm AR-15 Rifle Build Kit:... ... more | FREE shipping go to store |
 | Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash. 56 Complete Upper Receiver w/Pistol Lower Parts Kit is the perfect item for those looking to create a... ... more | FREE shipping go to store |
 | Ghost Firearms Vital Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 9in M-LOK Free Float Hand Guard A2 Birdcage. 56 Complete Upper Receiver w/Pistol Lower Parts Kit has everything you need to complete your new... ... more | FREE shipping go to store |
 | Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash. 56 Complete Upper Receiver w/Pistol Lower Parts Kit is the perfect item for those looking to create a... ... more | FREE shipping go to store |
 | Ghost Firearms Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash Can Blue. 56 Complete Upper Receiver w/Pistol Lower Parts Kit is the perfect item for those looking to create a... ... more | FREE shipping go to store |
 | 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 | FREE shipping go to store |
 | Grey Ghost Precision Complete Upper 5.56mm 20.12in 10.5in Low Profile Carbine 1-7 1x2/28 M-LOK Black GGP-556-10-UC. 56 10.5 Complete upper is exactly what you need to build a AR pistol or SBR using the same quality parts offered in complete GGP rifles... ... more | FREE shipping go to store |
 | Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine Length 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard. 56 Complete Upper Receiver w/Pistol Lower Parts Kit is the perfect item for those looking to create a... ... more | FREE shipping go to store |
 | 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 | FREE shipping go to store |
 | 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 | FREE shipping go to store |
 | 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 | FREE shipping go to store |
 | 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 | FREE shipping go to store |
 | 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 | FREE shipping go to store |
 | Sons of Liberty Gun Works East India Starter Kit Combat Grade 16in 5.56mm Black EIC-16-556 Sons of Liberty Gun Works East India Starter Kit Combat Grade 16in 5.56mm Black EIC-16-556. 56 Combat Grade Starter Kit. These AR15 Upper Receivers through the expert product professionals at Sons of Liberty Gun Works are made using long lasting and... ... more | FREE shipping go to store |
 | 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 | FREE shipping go to store |
 | 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 | FREE shipping go to store |
 | Aero Precision M4e1 5.56mm Assembled Upper Receiver W/Atlas R-One Handguard - M4e1 5.56mm Assembled $55 off $500+. Use code SEPT55This assembled upper includes Aero Precision's new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Their... ... more
Aero Precision M4e1 5.56mm Assembled Upper Receiver W/Atlas R-One Handguard - M4e1 5.56mm Assembled This assembled upper includes Aero Precision's new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Their... | go to store |
 | Aero Precision M4e1 5.56mm Assembled Upper Receiver W/Atlas R-One Handguard - M4e1 5.56mm Assembled $55 off $500+. Use code SEPT55This assembled upper includes Aero Precision's new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Their... ... more
Aero Precision M4e1 5.56mm Assembled Upper Receiver W/Atlas R-One Handguard - M4e1 5.56mm Assembled This assembled upper includes Aero Precision's new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Their... | go to store |
 | Aero Precision Ar-15 Upper Receiver Assembled No Auto Sear Cut - 5.56mm Assembled Upper Rcvr No Auto If you're looking to take advantage of the huge market for AR-15 components and accessories but aren't legally allowed to possess components that function with an installed auto sear in the AR-15 lower, then the Aero Precision AR-15 Upper Receiver with... ... more
Aero Precision Ar-15 Upper Receiver Assembled No Auto Sear Cut - 5.56mm Assembled Upper Rcvr No Auto If you're looking to take advantage of the huge market for AR-15 components and accessories but aren't legally allowed to possess components that function with an installed auto sear in the AR-15 lower, then the Aero Precision AR-15 Upper Receiver with... | go to store |
 | Aero Precision Ar-15 M4e1 Assembled Upper No Forward Assist - M4e1 5.56mm Assembled Upper Receiver N This upper receiver features the same tried-and-true construction and aesthetics as Aero's M4E1 Enhanced Upper Receivers, without provisions for a forward assist. The M4E1 Enhanced Upper Receiver is a one-piece design combining the handguard mounting... ... more
Aero Precision Ar-15 M4e1 Assembled Upper No Forward Assist - M4e1 5.56mm Assembled Upper Receiver N This upper receiver features the same tried-and-true construction and aesthetics as Aero's M4E1 Enhanced Upper Receivers, without provisions for a forward assist. The M4E1 Enhanced Upper Receiver is a one-piece design combining the handguard mounting... | go to store |
 | Aero Precision Ar-15 M4e1 Assembled Upper No Forward Assist - M4e1 5.56mm Assembled Upper Receiver N This upper receiver features the same tried-and-true construction and aesthetics as Aero's M4E1 Enhanced Upper Receivers, without provisions for a forward assist. The M4E1 Enhanced Upper Receiver is a one-piece design combining the handguard mounting... ... more
Aero Precision Ar-15 M4e1 Assembled Upper No Forward Assist - M4e1 5.56mm Assembled Upper Receiver N This upper receiver features the same tried-and-true construction and aesthetics as Aero's M4E1 Enhanced Upper Receivers, without provisions for a forward assist. The M4E1 Enhanced Upper Receiver is a one-piece design combining the handguard mounting... | go to store |
 | Aero Precision Ar-15 M4e1 Enhanced Upper Receiver - M4e1 Enhanced 5.56mm Assembled Upper Receiver Fo Aero Precision's M4E1 Enhanced Upper Receiver is a new take on the way the handguard attaches to the upper receiver on AR-15/M16 platforms. The upper receiver is made from forged 7075 T6 aluminum with the handguard mounting platform forged as an... ... more
Aero Precision Ar-15 M4e1 Enhanced Upper Receiver - M4e1 Enhanced 5.56mm Assembled Upper Receiver Fo Aero Precision's M4E1 Enhanced Upper Receiver is a new take on the way the handguard attaches to the upper receiver on AR-15/M16 platforms. The upper receiver is made from forged 7075 T6 aluminum with the handguard mounting platform forged as an... | go to store |
 | Aero Precision Ar-15 Assembled Upper Receiver 5.56mm - 5.56 Nato Assembld Upper Rcvr No Forward Assi The AR15 Assembled Upper Receiver comes with the port door already installed. This specific model does not have forward assist provisions. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil-spec M16/M4 specifications and... ... more
Aero Precision Ar-15 Assembled Upper Receiver 5.56mm - 5.56 Nato Assembld Upper Rcvr No Forward Assi The AR15 Assembled Upper Receiver comes with the port door already installed. This specific model does not have forward assist provisions. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil-spec M16/M4 specifications and... | go to store |
 | Aero Precision M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Nato Assembled Upper Rc The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to... ... more
Aero Precision M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Nato Assembled Upper Rc The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to... | go to store |
 | Aero Precision M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Nato Assembled Upper Rc The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to... ... more
Aero Precision M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Nato Assembled Upper Rc The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to... | go to store |
 | Aero Precision M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Nato Assembled Upper Rc The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to... ... more
Aero Precision M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Nato Assembled Upper Rc The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to... | go to store |
 | Aero Precision M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Nato Assembled Upper Rc The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to... ... more
Aero Precision M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Nato Assembled Upper Rc The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to... | go to store |
 | Alexander Arms AR15 Stripped Rifle Upper .50 Beowulf 16 in Barrel Carbine Length 1-20 Twist 49/64x20 Thread Thread Protector Black KIT-50. The Upper Receiver Built Kit comes with all the key components making it an excellent choice for a home build.... ... more | FREE shipping go to store |
 | Aero Precision M4e1 5.56mm Assembled Upper Receiver W/Atlas R-One Handguard - M4e1 5.56 Assem Upper $20 off $200+. Use code SEPT20This assembled upper includes Aero Precision's new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Their... ... more
Aero Precision M4e1 5.56mm Assembled Upper Receiver W/Atlas R-One Handguard - M4e1 5.56 Assem Upper This assembled upper includes Aero Precision's new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Their... | go to store |
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