WMD 5.56 Bolt Carrier Group Without Hammer - NiB-X Finish
- Proprietary Nickel Boron coating
- Extremely durable and easy to clean
- Slick surface makes for an extremely smooth action
- Polished finish
- M16 cut
- Does not include hammer
- Carrier Steel: 8620 and heat treated
- Bolt Steel: Carpenter 158 and heat treated
- Firing Pin: Hardened and chromed
- Gas Key: Hardened and staked per military standards
WMD Guns has established a reputation of excellence based on extensive firearms and defense industry experience, plating expertise, and gunsmithing capabilities. They are innovators in nickel boron products for the firearms industry and the sole source of the NiB-X nickel boron coating process.
Ratings & Reviews
Hope it gets better.
After researching nickel boron BCGs, I decided to go with this one. The finish is perfect. No machining marks and smooth. Cleaned BCG and applied a light coat of oil. Fired 20 rounds last night and didn't clean it. Tonight, the caming action of the bolt in the carrier was very stiff. Noticably harder to charge the rifle. Disassembled, cleaned, and lubed bolt and it works better. I was firing factory new Hornaday ammo. Hope it gets better than this.
by Joshua Shenk
Amazing BCG super finish and quality
by chris smith
Awesome bcg! One of my favorites!
by Michael Hartmann
Best I've used in a while, easy to clean however once used the finish is still bright but darker and took on a gold color instead of the silver.
by zach taylor
Compared the NIB-X to a bunch of other Nickel boron BCG's for my gas impingement AR and decided on it over the rest. Received it, cleaned it thoroughly and once it was clean it's literally like it's oiled! I still will run it with a light coat of Slip 2000 EWL! UPDATE: Took it to the range last Saturday and ran 60rds through it with no issues. Got home and wasnt impressed with how it cleaned up! My P.O.F rifle has a NP3 coated BCG and is a true wipe off BCG. IT is a piston rifle so it runs cleaner and cooler but was a little disappointed in the companies claim to simply wipe off.
by At the Forge
Couldn't be more pleased! The finish is extremely smooth. Carbon fouling brushes off. This product is a must have item for DGI rifle!
WMD BCG Sale
by chris perry
Excellent, Outstanding! Both the product and Primary Arms are superb!
Very nice BCG!!
by Chris Anderson
First off, I want to thank Primary Arms for their superb customer service. They also process and ship orders faster than any other company I know of. Okay, so now to the WMD BCG. This is the first NiB-X BCG I have ever owned, so I cannot compare this to any other. I was amazed at how slick it feels right out of the bag. I also examined it for fit and finish. I did not notice any burrs or sharp edges anywhere. The machining is excellent and I can see that their quality control is on par with higher end BCGs that I've owned in the past. As of writing this, I have put 300+ rounds without issues. I purchased the "full-auto" version and it works and runs flawlessly through my Spike's Enhanced AR15. I would have to give this purchase 5 stars for both product and PA's fast shipping. If your thinking of purchasing this, don't hesitate.
by Christopher Batson Sr.
Great product and service
by Larry Pugh
Great product the best service.This is my second WMD Nib-X bolt carrier. I wish I had them in all my AR's. The fit and function is perfect and the Nib-X finish lives up to its claims.