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AR-15/M16/M4 Full Auto Faceted Bolt Carrier Group – NiB-X Nickel Boron POLISHED
$164.00Rated 5.00 out of 5
Showing 1–16 of 232 results
FLAT RATE SHIPPING $10 ON ORDERS UP TO $170
wmdguns.com
WMD Guns
- SHOP
- FirearmsTo build an AR platform unlike any other, WMD Guns coated every exterior surface with our performance coatings. So you get a finish that’s 40% harder than chrome, and incredibly resistant to moisture, corrosion, and wear. We coat key internal components with NiB-X® to reduce friction and wear, for an action that’s incomparably smooth, utterly reliable, and as close to self-cleaning as you can get. It’s all hand-built and test-fired by our expert gunsmiths.
- AR Pistols
- AK RiflesNiB-X Coated AK’s
- 9mm RiflesNiB-X AR 9mm Carbine rifle and 9mm AR Pistol
- Beast® AR Rifles
- Big Beast™ .308 AR Rifles
- The Ultimate Chassis®
- Special BuildsExclusive, limited-production offerings…crafted by our expert gunsmiths. Here you will find not only firearms. You will also find One of Kind, Special Models and Special Coated ProductsNow you can own unique pieces devised by the gunsmiths at WMD—for a truly unique gun without the longer lead-time of a “start-from-scratch” design/build project.Check this page often to see the latest innovations as they become available, and let us know if you’d like to request a slight variation in caliber, finish, or barrel.Rifles, Handguns, Shotguns…even Class III (NFA) hardware (to licensed owners).To purchase any of the special editions or to design your own BeastTM, email customerservice@wmdguns.com or call 772-324-9915
- BarrelsWhether you’re replacing an old barrel, or building a brand-new rifle our barrels will provide an edge for accuracy.All WMD barrels are salt bath nitrided for 30% greater lifespan than chrome. Exterior finishes available in Nitromet™ and NiB-X®. Choose the length to match your favorite rifle, the twist to match your preferred bullet weight, and look forward to many thousands of rounds of extraordinary performance.
- Color Accents
- Bolt Carrier GroupsWMD brings the advanced performance of NiB-X® nickel boron and other performance coatings to one of the most critical components on your AR.Our premium BCG is coated in our proprietary NiB-X® nickel boron coating and polished to a presentation-grade sheen, this top-quality BCG resists fouling, needs practically no lubrication, and can be cleaned with a quick wipe of a cloth. We offer a variety of calibers and other popular performance coated BCGs.We’ve run thousands of rounds between cleanings without malfunctions. Military personnel have praised its performance in desert conditions (where heavy lube buildup could attract deadly dust and grime). You’ll find that it provides extraordinary reliability…while dramatically reducing the time you spend cleaning.Available in 5.56 and .308.Check out the specs:Bolt – Carpenter 158 heat-treated, shot peened and magnetic particle inspected. Manufactured to government drawings. Milspec gas rings. NiB-X coated (40% more wear-resistant than chrome).Extractor – Manufactured, heat treated, and hardened per government drawings. Black extractor buffer and heavy-duty spring. NiB-X coated.Firing Pin – Manufactured, heat-treated, hardened, chromed and certified per government drawings.Carrier – AR-15 or M16 style (heavy weight), 8620 material, heat treated and case hardened. Manufacturing tolerances on inside diameters tightly controlled. NiB-X coated for durability and ease of…
- Bolt Carrier GroupsWMD brings the advanced performance of NiB-X® nickel boron and other performance coatings to one of the most critical components on your AR.Our premium BCG is coated in our proprietary NiB-X® nickel boron coating and polished to a presentation-grade sheen, this top-quality BCG resists fouling, needs practically no lubrication, and can be cleaned with a quick wipe of a cloth. We offer a variety of calibers and other popular performance coated BCGs.We’ve run thousands of rounds between cleanings without malfunctions. Military personnel have praised its performance in desert conditions (where heavy lube buildup could attract deadly dust and grime). You’ll find that it provides extraordinary reliability…while dramatically reducing the time you spend cleaning.Available in 5.56 and .308.Check out the specs:Bolt – Carpenter 158 heat-treated, shot peened and magnetic particle inspected. Manufactured to government drawings. Milspec gas rings. NiB-X coated (40% more wear-resistant than chrome).Extractor – Manufactured, heat treated, and hardened per government drawings. Black extractor buffer and heavy-duty spring. NiB-X coated.Firing Pin – Manufactured, heat-treated, hardened, chromed and certified per government drawings.Carrier – AR-15 or M16 style (heavy weight), 8620 material, heat treated and case hardened. Manufacturing tolerances on inside diameters tightly controlled. NiB-X coated for durability and ease of…
- Bolt and Carrier Parts
- Gas System Parts
- Handguards
- Lower ReceiversUpgrade your AR with many of the same top-quality, American-made parts we use in our line of Beast rifles.Most of these parts are coated with our proprietary NiB-X® nickel boron coating process (indicated by the NIBX prefix in the individual part numbers). WMD’s exclusive NiB-X nickel boron coating helps any part resist friction, wear, and fouling. What’s more, the incredibly lubricious surface of WMD’s coated parts means that they can function smoothly without frequent oiling. All our components are made in the USA to OEM-grade tolerances.
- Receiver Sets
- Stripped Lowers
- Lower Parts KitsEverything you need to complete the buildout of a high-performance AR-15 lower receiver.Key parts have been coated with NiB-X® (WMD’s exclusive nickel boron coating process), which minimizes friction & wear, and greatly reduces the need for lubrication and cleaning.(WMD recommends that these components be installed by a qualified gunsmith.)Parts included in this kit:Bolt Catch Bolt Catch Plunger Buffer Retainer Disconnect* Magazine Catch Magazine Release ButtonTrigger Guard AssemblySafety Selector Selector DetentLock Washer Pistol Grip ScrewHammer*Trigger*
- Lower Parts
- Buffer Tubes and Parts
- Upper ReceiversSee why WMD has become the go to resource for high-performance custom AR buildouts and upgrades. Our upper assemblies and upper parts use the same high quality, performance components used in our NiB-X® Beast rifles.
- Muzzle Devices
- .308 Parts
- Magazines
- SlingStock®
- Furniture
- Accessories
- FirearmsTo build an AR platform unlike any other, WMD Guns coated every exterior surface with our performance coatings. So you get a finish that’s 40% harder than chrome, and incredibly resistant to moisture, corrosion, and wear. We coat key internal components with NiB-X® to reduce friction and wear, for an action that’s incomparably smooth, utterly reliable, and as close to self-cleaning as you can get. It’s all hand-built and test-fired by our expert gunsmiths.
- ABOUT
- ABOUT
- FIREARM COATINGS
- NEWS & MEDIA
- CONTACT US
- SHOP
- FirearmsTo build an AR platform unlike any other, WMD Guns coated every exterior surface with our performance coatings. So you get a finish that’s 40% harder than chrome, and incredibly resistant to moisture, corrosion, and wear. We coat key internal components with NiB-X® to reduce friction and wear, for an action that’s incomparably smooth, utterly reliable, and as close to self-cleaning as you can get. It’s all hand-built and test-fired by our expert gunsmiths.
- AR Pistols
- AK RiflesNiB-X Coated AK’s
- 9mm RiflesNiB-X AR 9mm Carbine rifle and 9mm AR Pistol
- Beast® AR Rifles
- Big Beast™ .308 AR Rifles
- The Ultimate Chassis®
- Special BuildsExclusive, limited-production offerings…crafted by our expert gunsmiths. Here you will find not only firearms. You will also find One of Kind, Special Models and Special Coated ProductsNow you can own unique pieces devised by the gunsmiths at WMD—for a truly unique gun without the longer lead-time of a “start-from-scratch” design/build project.Check this page often to see the latest innovations as they become available, and let us know if you’d like to request a slight variation in caliber, finish, or barrel.Rifles, Handguns, Shotguns…even Class III (NFA) hardware (to licensed owners).To purchase any of the special editions or to design your own BeastTM, email customerservice@wmdguns.com or call 772-324-9915
- BarrelsWhether you’re replacing an old barrel, or building a brand-new rifle our barrels will provide an edge for accuracy.All WMD barrels are salt bath nitrided for 30% greater lifespan than chrome. Exterior finishes available in Nitromet™ and NiB-X®. Choose the length to match your favorite rifle, the twist to match your preferred bullet weight, and look forward to many thousands of rounds of extraordinary performance.
- Color Accents
- Bolt Carrier GroupsWMD brings the advanced performance of NiB-X® nickel boron and other performance coatings to one of the most critical components on your AR.Our premium BCG is coated in our proprietary NiB-X® nickel boron coating and polished to a presentation-grade sheen, this top-quality BCG resists fouling, needs practically no lubrication, and can be cleaned with a quick wipe of a cloth. We offer a variety of calibers and other popular performance coated BCGs.We’ve run thousands of rounds between cleanings without malfunctions. Military personnel have praised its performance in desert conditions (where heavy lube buildup could attract deadly dust and grime). You’ll find that it provides extraordinary reliability…while dramatically reducing the time you spend cleaning.Available in 5.56 and .308.Check out the specs:Bolt – Carpenter 158 heat-treated, shot peened and magnetic particle inspected. Manufactured to government drawings. Milspec gas rings. NiB-X coated (40% more wear-resistant than chrome).Extractor – Manufactured, heat treated, and hardened per government drawings. Black extractor buffer and heavy-duty spring. NiB-X coated.Firing Pin – Manufactured, heat-treated, hardened, chromed and certified per government drawings.Carrier – AR-15 or M16 style (heavy weight), 8620 material, heat treated and case hardened. Manufacturing tolerances on inside diameters tightly controlled. NiB-X coated for durability and ease of…
- Bolt Carrier GroupsWMD brings the advanced performance of NiB-X® nickel boron and other performance coatings to one of the most critical components on your AR.Our premium BCG is coated in our proprietary NiB-X® nickel boron coating and polished to a presentation-grade sheen, this top-quality BCG resists fouling, needs practically no lubrication, and can be cleaned with a quick wipe of a cloth. We offer a variety of calibers and other popular performance coated BCGs.We’ve run thousands of rounds between cleanings without malfunctions. Military personnel have praised its performance in desert conditions (where heavy lube buildup could attract deadly dust and grime). You’ll find that it provides extraordinary reliability…while dramatically reducing the time you spend cleaning.Available in 5.56 and .308.Check out the specs:Bolt – Carpenter 158 heat-treated, shot peened and magnetic particle inspected. Manufactured to government drawings. Milspec gas rings. NiB-X coated (40% more wear-resistant than chrome).Extractor – Manufactured, heat treated, and hardened per government drawings. Black extractor buffer and heavy-duty spring. NiB-X coated.Firing Pin – Manufactured, heat-treated, hardened, chromed and certified per government drawings.Carrier – AR-15 or M16 style (heavy weight), 8620 material, heat treated and case hardened. Manufacturing tolerances on inside diameters tightly controlled. NiB-X coated for durability and ease of…
- Bolt and Carrier Parts
- Gas System Parts
- Handguards
- Lower ReceiversUpgrade your AR with many of the same top-quality, American-made parts we use in our line of Beast rifles.Most of these parts are coated with our proprietary NiB-X® nickel boron coating process (indicated by the NIBX prefix in the individual part numbers). WMD’s exclusive NiB-X nickel boron coating helps any part resist friction, wear, and fouling. What’s more, the incredibly lubricious surface of WMD’s coated parts means that they can function smoothly without frequent oiling. All our components are made in the USA to OEM-grade tolerances.
- Receiver Sets
- Stripped Lowers
- Lower Parts KitsEverything you need to complete the buildout of a high-performance AR-15 lower receiver.Key parts have been coated with NiB-X® (WMD’s exclusive nickel boron coating process), which minimizes friction & wear, and greatly reduces the need for lubrication and cleaning.(WMD recommends that these components be installed by a qualified gunsmith.)Parts included in this kit:Bolt Catch Bolt Catch Plunger Buffer Retainer Disconnect* Magazine Catch Magazine Release ButtonTrigger Guard AssemblySafety Selector Selector DetentLock Washer Pistol Grip ScrewHammer*Trigger*
- Lower Parts
- Buffer Tubes and Parts
- Upper ReceiversSee why WMD has become the go to resource for high-performance custom AR buildouts and upgrades. Our upper assemblies and upper parts use the same high quality, performance components used in our NiB-X® Beast rifles.
- Muzzle Devices
- .308 Parts
- Magazines
- SlingStock®
- Furniture
- Accessories
- FirearmsTo build an AR platform unlike any other, WMD Guns coated every exterior surface with our performance coatings. So you get a finish that’s 40% harder than chrome, and incredibly resistant to moisture, corrosion, and wear. We coat key internal components with NiB-X® to reduce friction and wear, for an action that’s incomparably smooth, utterly reliable, and as close to self-cleaning as you can get. It’s all hand-built and test-fired by our expert gunsmiths.
- ABOUT
- ABOUT
- FIREARM COATINGS
- NEWS & MEDIA
- CONTACT US
