Bolt Carrier Group - 5.56/.223/300 BLK - Nitride - Right Handed

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This bolt carrier assembly is designed to work with any Stag 15 rifle, upper half, or barrel designed for right hand ejection in the either 5.56, .223, or 300 BLK. The salt path nitride process (also known as QPQ) creates a much harder surface that is, easy to clean, will run with less than ideal lubrication and resists wear for a lasting corrosion resistant durable finish.


Coating: Nitride Coating

Bolt carrier material: 8620 steel

Bolt: 5.56/.223/300 BLK Right-Handed Bolt assembly

Included parts: Bolt carrier, bolt assembly, cam pin, firing pin, and firing pin retaining pin

Design: M16 carrier with a shrouded firing pin

Staking: Proper mil-spec staking of the gas key

SKU: STAG300858


Q: Will this bolt carrier work with other manufacturer's rifles and upper halves?

A: Yes, this bolt carrier assembly will work with other manufacturer’s left-handed 5.56 rifles and upper halves.

Q: Can I use this bolt carrier with the Stag Arms piston system?

A: No, this bolt carrier assembly will not work with piston systems.

13 Reviews

  • 5

    Posted by BRIAN A KETCHERSIDE on 13th Jul 2021

    The STAG nitride BCG is perfect for the low to average shooter that only shoots 1,000 rounds or less a year. This BCG is easy to clean and shines pretty (when the dust flap is open). This should last a lifetime as long as no full-auto is used. Just remember that the extractor on the bolt might need replacing every few thousand rounds (especially if using steel case ammo). I hope this helps.

  • 5

    Posted by Josh on 2nd Jul 2021

    This BCG functions perfectly I’ve already put 500 rounds through it not a single issue you cannot beat it for the price I definitely recommend.

  • 5
    Super slick BCG

    Posted by Aaron Sky on 25th Jun 2021

    I understand that a nitride BCG should be nice and slick, but I have to say it sure is cool to see and feel. I got this from Stag because I knew it would be super good quality. If I ever need another, I will get this one again.

  • 4
    Quality Craftsmanship

    Posted by Jorge Savoff on 20th May 2021

    BCG is what I expected in fit and finish. I like to buy my spare parts from the OE manufacturer whenever possible.

  • 5

    Posted by Cosmo Chiles on 4th May 2021

    Comoo pop writing e pricing,, with in spec, and a quality slick nitrate finish. What more could you ask for. Look forward to my next purchase .

  • 5

    Posted by Jeff on 13th Apr 2021

    Very clean BCG. No noticeable imperfections and it runs great. For the price you will not find anything better.

  • 5

    Posted by Mike L on 13th Apr 2021

    High quality. So good a bought another a few weeks later. Areo like quality.

  • 5
    Awesome bcg

    Posted by Gun guy knox tn on 13th Apr 2021

    This bolt carrier group came in perfect condition looked amazing no tooling marks no scratches whatsoever ...The nitride coating is super slick and I have no doubt that I’ll be ordering more of these in the future. Thanks stag for being reliable and honest

  • 5
    Full Auto Bolt Carrier

    Posted by Theodore K Hogan on 2nd Apr 2021

    Excellant Quality and packaging.