Lantac USA M-SPEC 5.56 Bolt Carrier Group - Titanium Nitride

Manufactured by Lantac USA
Manufactured by Lantac USA
1 Review

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The Lantac M-SPEC BCG is ideal for shooters who want to add a quality assembly to their next build. The bolt carrier group is constructed from high-quality 8620 steel and finished with black nitride for optimal durability and strength. This bolt carrier is precision machined to Mil-Spec dimensions and tolerances for optimal fit and performance. The Lantac carrier is case hardened and hard turned/ground so that its internal dimension are precisely military specifications. Additionally, the BCG is Titanium Nitride coated for unrivaled corrosion resistance, durability and performance. The bolt in the Lantac M-SPEC is constructed from Carpenter 158, shot peened and hard turned as per the military specifications. This BCG boasts a Lantac CP-R360 domed head cam pin, precision machined from 17-4PH stainless steel, hand polished and hardened to reduce friction and wear within the upper receiver. The M-SPEC® line of products are ideal for budget builds where quality and reliability are still paramount. The Lantac M-SPEC BCG is a full auto style with increased mass and offers years of service life and unrivaled durability.  

  • Manufactured by Lantac
  • Optimized for .223/5.56mm
  • 8620 steel carrier
  • MPI Carpenter 158 bolt
  • Titanium nitride finish
  • CP-R360 domed cam pin
  • Lifetime warranty

Lantac USA manufactures the highest quality accessories for AR-15/M16 pattern rifles. Precision made in the U.S.A., rifles, muzzle brakes and more.
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Bolt FinishTitanium Nitride
Bolt MaterialCarpenter 158 Steel
BrandLantac USA
Caliber Gauge5.56 NATO
Carrier FinishTitanium Nitride
Carrier Material8620 Tool Steel
Carrier StyleM16 Bolt Carrier
Magnetic Particle InspectMagnetic Particle Inspected

Ratings & Reviews

1 review

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Piece of Junk

by -

Bought one of these last year while slowly accumulating parts for a build. Come to find out the gas key isn't sealing so the bcg won't cycle. Swapped this bolt carrier group with a known good one to test, and whichever rifle this one goes into won't cycle. Contacted Lantac and never got a response. Can't say their customer service is poor, but I can say it doesn't exist.
<br>Nice speaking to you about this issue. We hope to hear back from Lantac on this. Please let us know if there is anything else we can help you with.