Toolcraft AR15 Premium Nitride Bolt Carrier Group 5.56/.223

Was: $119.99
Now: $73.99
(29 reviews) Write a Review

These are in stock and shipping free! They are coated by and purchased directly from Toolcraft.

Toolcraft Black Nitride AR15 Bolt Carrier Group is a M16 Full Auto BCG, manufactured using a 9310 steel bolt, and a 8620 steel carrier.

Carrier Specifications

Material: 8620 Steel
Type:  M16 Full Auto (Preferred for most AR-15 builds)
Gas Key Material:  4130 Steel; Grade 8 Gas Key Screws
Coating:  Black Nitride

Bolt Specifications

Bolt Material:  9310 Steel
Extractor Material: 4140 Steel
Mil-Spec O-Ring
Mil-Spec Gas Rings (3)
Cam Pin Material: 8620 Steel
Firing Pin Material: 416 Stainless Steel
Other: MPI Inspected

Lifetime Warranty 

29 Reviews Hide Reviews Show Reviews

  • 3
    Cost effective bolt carrier group

    Posted by on Sep 1st 2018

    Looks well made bit the finish on the one I received looks more like really smooth cerakote as opposed to a nitride finish like the one pictured on the website. I have a couple of toolcraft nickel boron BCGs that look and function great so I assume this one will function well but I am still unsure about the finish on this one.

  • 5
    Excellent Fit and Finish

    Posted by Unknown on Aug 29th 2018

    This BCG has cycled everything I have thrown at it, and has a nice, even finish throughout. The gas key is properly staked, the bolt runs like butter, and the tolerances are fantastic. Great BCG, not just for the price, and E-ARMS has once again offered excellent service.

  • 5
    Heck yeah

    Posted by Jeff Axelsen on Aug 8th 2018

    Quality product at a good price. Was shipped promptly, and packaged well enough that USPS couldn't beat up the gas key.

  • 5
    Excellent, affordable option

    Posted by Unknown on Jul 25th 2018

    Consistent finish, excellent fit and great price. I've got a dozen or so of these and all headspace correctly. Consistent tooling.

  • 5
    Tool Craft Nitrided 5.56 BCG

    Posted by Don R., Lakeland FL on Jul 4th 2018

    I purchased this BCG as it is my first Tool Craft BCG and have read many favorable reviews on the Tool Craft BCG's. I will be ordering more. It is very important to have a good supply of BCG and other critical parts as spares. My order from E-Arms shipped quickly and it is being fitted to a PSA upper. I expect it will perform flawlessly.

  • 5
    Toolcraft BCG Review

    Posted by Brandon on Jul 4th 2018

    In life, there are 3 certainties. Death, taxes, and having a quality experience when ordering from Greg at E-Arms. Greg consistently delivers a quality product and ships fast! The Toolcraft BCG is a great option for a new build or a replacement BCG in your rifle.

  • 5
    Toolcraft AR15 Nitride Bolt Carrier Group 5.56/.223

    Posted by steven uttecht on Jun 29th 2018

    I built an AR-15 pistol with 10.5" barrel. It did fine with good ammo but would sometimes fail to chamber the next round when using steel ammo. I put this nitride BCG in place of the phosphate one and now the "pistol" cycles steel as well and brass ammo.

  • 5
    Outstanding BCG!

    Posted by Kenneth on Jun 22nd 2018

    Looks and functions great. Was really impressed with the quality and finish. Only put 20 rounds through my new pistol build to test the gun and it ran great with this BCG. Would definitely buy another when I'm in the market for another. Price is great and ordering was easy and got it in a few days.

  • 5
    Great looking product.

    Posted by on Jun 10th 2018

    Looks great still haven't used it yet but looks amazing