Toolcraft DLC Black BCG C158 556

Free Shipping on all Toolcraft Bolt Carrier Groups! 

Shop other DLC colors: Toolcraft DLC FDE BCG, and Toolcraft DLC Gray BCG. 

The Ionbond Diamond Like Carbon (DLC) finish is an incredibly hard (90 Rockwell) self-lubricating finish. This makes it extremely resistant to wear and corrosion.  This also makes it an ideal finish for a critical part like an AR15 bolt carrier group.

Toolcraft uses state-of-the-art machinery, processes and quality control to ensure that every bolt carrier group is capable of the most demanding missions. This has made Toolcraft a first choice of OEMs and the U.S. Military.

Above: A smooth finish, free of machine marks.

This Toolcraft DLC Bolt Carrier Group is paired with a MIL-SPEC Carpenter 158 bolt. This bolt steel has served the U.S. Military well for many decades and when paired with Toolcraft quality and the Ionbond DLC finish, this is quite likely the ultimate hard use bolt carrier group!

See also the 9310 bolt version here: Toolcraft DLC BCG 9310 Bolt 556

 This is a 223/5.56/300 Blackout bolt carrier group.

This BCG will not work with 6.5/6.8/308 etc.

Toolcraft products carry a Lifetime Warranty.

See our views of Toolcraft BCGs here - Toolcraft Gallery

Like to know more? Get more details on "The Diamond" (Pictures too!) here: Toolcraft Diamond DLC BCG Review - The Best BCG Ever Made?

Note: Some dealers are selling Toolcraft BCGs that have been finished after leaving Toolcraft. The finish on those BCGs would not be warrantied by Toolcraft. All Toolcraft bolt carrier groups sold by SpiceTac include the 100% no-questions-asked Toolcraft warranty.