Hunting & Archery Equipment › brownells brn 4 upper receiver

Brownells Brn-4 Assembled Upper Receivers - Brn-4 10.4" Assembled Upper Receiver Heavy Barrel

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device, and... more

Brownells Brn-4 Assembled Upper Receivers - Brn-4 10.4" Assembled Upper Receiver Medium Barrel

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device, and... more

FM Products MIKE-9 9mm Complete Upper Receiver 23.75 inch 16 inch Barrel MIL-SPEC Rear Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black

FM Products MIKE-9 9mm Complete Upper Receiver 23.75 inch 16 inch Barrel MIL-SPEC Rear Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black. . These AR15 Upper Receivers through the professional product experts at FM Products are designed by using... more

FM Products MIKE-45 .45 ACP Complete Upper Receiver Kit 16 inch Barrel Mil-Spec Rear Charge Black MIKE45U-R1615-4-MMKIT

FM Products MIKE-45 .45 ACP Complete Upper Receiver Kit 16 inch Barrel Mil-Spec Rear Charge Black MIKE45U-R1615-4-MMKIT. 45 ACP Complete Upper Receiver Kit was made to be the ideal item for any person looking for an outstanding choice.. Established... more

FM Products MIKE-45 .45 ACP Complete Upper Receiver Kit 16 inch Barrel Front Charge Black MIKE45U-F1615-4-MMKIT

FM Products MIKE-45 .45 ACP Complete Upper Receiver Kit 16 inch Barrel Front Charge Black MIKE45U-F1615-4-MMKIT. 45 ACP Complete Upper Receiver Kit was made to be the ideal item for any person looking for an outstanding choice.. Established using some... more

Brownells Brn-4 Assembled Upper Receivers - Brn-4 16" Assembled Upper Receiver Medium Barrel

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device, and... more

Brownells Brn-4 Assembled Upper Receivers - Brn-4 14.5" Assembled Upper Receiver Medium Barrel

Assembled from All New Components Fits Standard AR-15 Lowers The BRN-4 Upper Receiver is now available as an Assembled Upper, with Barrel and Gas System installed. Simply add your preferred HK 416 compatible handguard and any 1/2-28 muzzle device, and... more

Brownells Upper Receiver Bushing For Hk416 & Mr556 - Brn-4 Upper Receiver Op Rod Bushing For Hk416 &

U.S. made aftermarket replacement upper receiver op rod bushing for the Heckler & Koch 416 or MR556 Rifles. Mfg: Brownells more

Brownells Brn-4 Stripped Upper Receiver Billet

Assemble your own BRN-4 Upper Receiver Assembly Machined from billet aluminum the new BRN-4 Stripped Upper Receiver mates perfectly with the Brownells BRN-4 barrels, gas system components and bolt carrier group. Assemble a BRN-4 Upper Receiver Group... more

Brownells Brn-4 416/Mr556 Complete Bolt Carrier Group - Brn-4 416 Type Complete Bcg Nitride

BRN-4 Complete Bolt Carrier Group for 416 Type Firearms This Completely assembled BRN-4 Bolt Carrier Group is ready to drop into HK 416, MR556 or other compatible upper receivers & firearms. Utilizing high quality materials, finishes and inspection... more

Brownells Ar-15 M16 A1 Upper Receiver - Brn-16a1 M16a1 Upper Receiver Black

Designed in conjunction with Nodak Spud, the Brownells M16A1 Upper Receiver matches the features of the original M16A1 Receiver. Perfect for a "Retro" or reproduction build, these uppers precisely mirror the original profile. This match is only... more

Brownells Ar-15/M16 Armorer's Small Parts Kit - Ar-15 Armorer's Small Parts Kit

Designed for the armorer or gunsmith who services a lot of ARs! This extensive kit includes the key small components for both the upper and lower receiver to keep your customers', department's, or agency's AR-15s ready for action. Also great for doing... more

Volquartsen Llv Competition Upper Receiver 4.5" Ts Black

A hard anodized CNC-machined billet receiver is the foundation of this lightweight setup. The complete barreled receiver weighs under 16oz! The receiver and barrel shroud are precision-machined as one piece from aluminum alloy. An integral Picatinny... more

Brownells Ar-15 Armorer's Wrench

Brownells new AR-15 Armorer's Wrench works with either encapsulated or peg-style barrel nuts. The long handle ends with a carbine buttstock wrench that features four teeth that ensure full engagement of all four notches in an M4-style receiver... more

Brownells Ar-15/M16 Barrel Extension Torque Tools - Ar-15/M16 Barrel Extension Torque Tool

Handy tool aids in applying straight-line torque for fast, easy installation of the barrel nut without scratching the exterior of the upper receiver. Helps ensure the right amount of torque is evenly applied, while maintaining proper alignment of the... more

Brownells Car-15/M4 Buttstock Wrench - M4 Buttstock Wrench

Dedicated wrench has four precision-machined teeth that ensure full, non-slip engagement of all four notches in an M4-type receiver extension nut for easy removal and installation of collapsible carbine buttstocks. Transfers all the torquing force to... more

Brownells Unplated Steel Flat Head Wood Screw Kit - 2x1/4" Steel Flat Head Wood Screws Blued 12 Pack

Just the ticket when you need to brown or blue a wood screw - no plating to grind off. In a handy, clear, bench box. U.S. made with 82° shoulder to fit standard countersinks. Mfg: Brownells SPECS: Kit Contains 12 Each Of Following Sizes: 2x�"; 2x3/8";... more

Colt Ar-15/M16 9mm Dedicated Conversion Block - Ar6951 9mm Conversion Unit Adapter

Genuine Colt 9mm AR-15/M16 magazine well adapter converts standard AR-15/M16 lowers for use with Colt 9mm Upper Receivers. Accepts Colt 9mm style magazines, such as those from Metalform or Brownells. Includes ejector and feedramp. Adapter is machined... more

Brownells Ar-15 Replacement Brush - Ar-15 Replacement Receiver Brush

Make short work of cleaning heavily fouled AR-15 upper receivers, right down to the locking lug recess. Specially sized and shaped bronze receiver brush quickly looses stubborn carbon residue from the bolt carrier way and locking lug recess. Mfg:... more

Brownells Ar-15/M16 Receiver Taps & Dies - 1-3/16-16 Carbon Steel Hex Die

Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250"-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16"-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver... more

Brownells Baking Lacquer Liquid - 16 Oz. Coyote Brown Baking Lacquer

Many guns and parts out there can't be finished with the old standard finishes like hot salts bluing, rust bluing or nickel plating. Including, those late Winchester 94s; engraved, or gray finished receivers; or low-dollar guns whose owners don't want... more

Brownells Ar-15 Replacement Bore Mops - Ar-15 Replacement Wool Mop

Make short work of cleaning heavily fouled AR-15 upper receivers, right down to the locking lug recess. Wool mop quickly loosen stubborn carbon residue from the bolt carrier way and locking lug recess. Mfg: Brownells more

POF USA Rogue Upper Receiver Assembly Rifle Length 14in Handguard 20in Barrel 5/8x24 M-LOK Micro B Muzzle Break Patriot Brown 1827

POF USA Rogue Upper Receiver Assembly Rifle Length 14in Handguard 20in Barrel 5/8x24 M-LOK Micro B Muzzle Break Patriot Brown 1827. 308/6.5 semi auto rifle on the market and to do it without needless lightening cuts. Thanks to its ridiculously light... more

Radian Weapons Model 1 Upper Receiver and Hand Guard Set 8.5 in M-LOK Radian Brown R0647

Radian Weapons Model 1 Upper Receiver and Hand Guard Set 8.5 in M-LOK Radian Brown R0647. The matching hand guard includes MLOK mounting points for accessories like lights and lasers and the upper receiver has a Magpul M-LOK compatible design. Every... more

POF USA Minuteman Upper Receiver 5.56 16.5in Barrel Mid Length 1-8 Twist 1/2x28 14.5in Renegade Rail 3-prong Flash Hider Patriot Brown 1815

POF USA Minuteman Upper Receiver 5.56 16.5in Barrel Mid Length 1-8 Twist 1/2x28 14.5in Renegade Rail 3-prong Flash Hider Patriot Brown 1815. They took it upon themselves to be trained in various weapons and tactics. We deeply admire their patriotism... more

Aero Precision Complete Upper Receiver M5 .308 Winchester 20in Heavy Rifle Length 1 in 10 5/8 x 24 15in A2 Flash Hider Anodized Kodiak Brown

Aero Precision Complete Upper Receiver M5 .308 Winchester 20in Heavy Rifle Length 1 in 10 5/8 x 24 15in A2 Flash Hider Anodized Kodiak Brown. Our proprietary ATLAS attachment system is a durable and dependable mounting platform maintaining a slim... more

Radian Weapons Model 1 Upper Receiver and Hand Guard Set 15.5 in M-LOK Radian Brown R0619

Radian Weapons Model 1 Upper Receiver and Hand Guard Set 15.5 in M-LOK Radian Brown R0619. The matching hand guard includes MLOK mounting points for accessories like lights and lasers and the upper receiver has a Magpul M-LOK compatible design. Every... more

POF USA Minuteman Upper Receiver 5.56 10.5in Barrel Carbine Length 1-8 Twist 1/2x28 9in Renegade Rail 3-prong Flash Hider Patriot Brown 1817

POF USA Minuteman Upper Receiver 5.56 10.5in Barrel Carbine Length 1-8 Twist 1/2x28 9in Renegade Rail 3-prong Flash Hider Patriot Brown 1817. They took it upon themselves to be trained in various weapons and tactics. We deeply admire their patriotism... more

POF USA Rogue Upper Receiver Assembly Mid Length 11in Handguard 16.5in Barrel 5/8x24 M-LOK Micro B Muzzle Break Patriot Brown 1823

POF USA Rogue Upper Receiver Assembly Mid Length 11in Handguard 16.5in Barrel 5/8x24 M-LOK Micro B Muzzle Break Patriot Brown 1823. 308/6.5 semi auto rifle on the market and to do it without needless lightening cuts. Thanks to its ridiculously light... more

Daniel Defense DDM4V7 Pro URG 5.56 1-7 S2W LPG MFR XS Rail 15.0 DD Muzzle Climb Mitigator Gen II BCM Mod 4 CH Upper Receiver Complete 18in

Daniel Defense DDM4V7 Pro URG 5.56 1-7 S2W LPG MFR XS Rail 15.0 DD Muzzle Climb Mitigator Gen II BCM Mod 4 CH Upper Receiver Complete 18in. 56 Upper Receiver to gain a competitive advantage during your multi-gun matches. These AR15 Upper Receivers... more

FM Products MIKE-9 9mm Complete Upper Receiver 23.75 inch 16 inch Barrel Front Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black MIKE9U-F1615-4

FM Products MIKE-9 9mm Complete Upper Receiver 23.75 inch 16 inch Barrel Front Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black MIKE9U-F1615-4. . These AR15 Upper Receivers through the professional product experts at FM Products are designed by... more

Moriarti OpticsPlanet Exclusive Pistol Upper Receiver AR-9mm 4.5inStraight 1-10 Twist 1/2x36 4in Diamond Cut MLOK Slim Profile Black MAR-9MM-4-7-SLICK

Moriarti OpticsPlanet Exclusive Pistol Upper Receiver AR-9mm 4.5inStraight 1-10 Twist 1/2x36 4in Diamond Cut MLOK Slim Profile Black MAR-9MM-4-7-SLICK. 5in Slick Slider Pistol Upper Assembly. These AR15 Upper Receivers through the professional product... more

Aero Precision M5E1 Enhanced Stripped Upper Receiver Kodiak Brown APAR308788AC

Aero Precision M5E1 Enhanced Stripped Upper Receiver Kodiak Brown APAR308788AC. . Developed by using some of the very most durable and long lasting resources around these AR15 Upper Receivers through Aero Precision can provide an item which will give... more

Aero Precision M4E1 Enhanced Stripped Upper Receiver Kodiak Brown APAR600216AC

Aero Precision M4E1 Enhanced Stripped Upper Receiver Kodiak Brown APAR600216AC. Developed using several of the most extremely durable and dependable components around these AR15 Upper Receivers through Aero Precision will provide you with a product... more

CMMG Mk4 Banshee Upper Receiver Group .22 Long Rifle 4.5in Armor Black 22B5BD4-AB

CMMG Mk4 Banshee Upper Receiver Group .22 Long Rifle 4.5in Armor Black 22B5BD4-AB. 22 LR that looks like an AR build an AR that happens to be chambered in .22 LR. Equipped with a 4.5 barrel the shortest CMMG offers in any caliber this BANSHEE upper... more

CMMG Mk4 4.6X30mm Banshee Upper Group Receiver 8in Tungsten 46B965A-TNG

CMMG Mk4 4.6X30mm Banshee Upper Group Receiver 8in Tungsten 46B965A-TNG. 6x30mm firearm to the U.S. civilian market continuing a tradition of innovation shooters everywhere can now build a light recoiling flat shooting PDW (personal defense weapon)... more

Moriarti Complete Upper Receiver AR-9 9mm 4.5 inch Barrel Straight Profile 1-10 Twist 1/2X36 Thread M-LOK Handguard Multiport Anodized Black Black

Moriarti Complete Upper Receiver AR-9 9mm 4.5 inch Barrel Straight Profile 1-10 Twist 1/2X36 Thread M-LOK Handguard Multiport Anodized Black Black. 5 Diamond Cut 4 M-Lok Upper Assembly with a multiport feature including an AR-15 Milspec Charging Handle... more

Aero Precision M5 Threaded Assembled Upper Receiver AR Platform 22in High Profile 1-8 Twist 5/8x24 Thread Kodiak Brown APAR308515AC

Aero Precision M5 Threaded Assembled Upper Receiver AR Platform 22in High Profile 1-8 Twist 5/8x24 Thread Kodiak Brown APAR308515AC. 308 Winchester Gun Make: AR Platform Condition: New Features of Aero Precision M5 Threaded Assembled Upper Receiver M4... more