• Forward Porting, enlarged vents assist in reducing pressurization inside the upper
  • MPI Carpenter 158 Bolt, Shot Peened, Hard Turned / Ground
  • CP-R360 Domed Cam Pin
  • Mil-Spec Staked Gas Key
  • Grade 8 Hardened Fasteners
  • All Hard Chrome surfaces are to MIL-STD-171
  • Shot Peening is conducted with S110 shot, Established by Almen Gage A-2 strip .006 -.008
  • Lifetime Warranty from LANTAC


  • Caliber: 5.56 NATO / .223 Rem. / 300BLK
  • Weight: 11.7 oz.
  • Finish: QPQ Nitride
  • Material:
    • Carrier: 8620 Steel
    • Bolt: Carpenter 158
  • Profile: M16

**A full-auto (A.K.A. M16) bolt carrier installed in a standard semi-auto AR-15 will not make the gun fire full-auto.


  • AR-15


  • 1x 5.56 NATO / .223 Rem. / 300 Blackout Bolt
  • 1x Carrier
  • 1x Extractor
  • 1x Cam Pin
  • 1x Carrier Key
  • 1x Firing Pin


When you decide to step up into the wonderful world of AR-15 it’s easy to walk into problems. By making the decision for a critical upgrade to a LANTAC Black Nitride Bolt Carrier Group you get to avoid many of these issues. The right bolt carrier group can make all the difference in the world.

Short Barrel Rifles/Suppressor Rated

Obviously, running a suppressor creates increased pressure in your weapon that must be compensated for. A LANTAC Black Nitride BCG runs cooler and cleaner due to its design and industry-leading coating that gives it a very hard, smooth surface. This bolt carrier group incorporates increased mass and lock time to offset the ravages of suppressed AR. The forward poring and unique shape reduces pressure in the upper. The revolutionary design of your new LANTAC Black Nitride Bolt Carrier Group results in smoother operation so, when you flick on firing suppressed you can rock and roll without worries that your bolt carrier group can take it.

Everything Changes, As It Should

I know you’ve heard old-timers say, “they don’t make them like they used to” I know I have, and I’m glad they don’t. The LANTAC Black Nitride BCG takes full advantage of cutting-edge advances in metallurgy, computer controlled machining, and the latest coatings to create a bolt carrier group that’s far ahead of its ancestors. Advances in something as minute as the method that gas is vented makes an enormous improvement in the performance of the LANTAC Black Nitride Bolt Carrier Group. You may still reach for a classic Coke when you’re thirsty, however, when you want performance for your AR-15 you need an enhanced LANTAC Black Nitride BCG. This is tomorrows equipment, for today's shooter.

Have a question?

Ask an Expert