Bolt Carrier Group, .308 Polished Nickel Boron

(3 reviews) Write a Review
1.00 LBS
$8.50 (Fixed Shipping Cost)

NOTICE: Out of stock, we have more in process.

.308 Polished Bolt Carrier Group with Nickel Boron Coating

These .308 (DPMS Pattern) bolt carrier groups are polished after machining and feature NiB-X nickel boron baked coating, which provides extreme durability, performance, and reliability. The nickel boron coating is corrosion resistant and harder than nickel teflon, melonite, or hard chrome with a hardness of RC 72. Cycling is smoother and debris and buildup can simply be wiped free. Weighs 18.1 oz.


Made in USA


No returns taken on bolt carrier groups. If defective, we will arrange shipment and return to manufacturer representative for inspection/repair or replacement. Void if fired with reloads or if rifle is not assembled by a manufacturer or gunsmith.

3 Reviews

  • 5
    Looks great and the price was right!

    Posted by Unknown on 30th Mar 2017

    I bought this bcg for a creedmoor build, I'm still waiting on the gas block. I can't wait run this rig! The finish and quality is top notch. I'lll be back for more!

  • 5

    Posted by Unretarded on 16th Apr 2016

    I wanted high quality and one of the best bolt carrier groups I could find and I see no reason why this one is not it. Smooth as butter and not a machine mark to be can find a cheaper one, but better would be hard to find ! Very happy !

  • 5
    great machining, polished, functional engineering

    Posted by Liz on 3rd May 2015

    very impressed with JL Billet's polished NiB-X BCG. Should outlast others in the field.. Functions flawlessly.