Charlotte, NC • Since 1959

Lantac E-BCG Enhanced Bolt Carrier Group For AR-15 223 / 5.56, Titanium Nitride Finish

The LANTAC E-BCG is precision machined from 8620 steel with a shot peened bolt manufactured from Carpenter 158 and Magnetically Particle Inspected. The entire carrier assembly is treated with a Nitride QPQ process and then TiN coated; Titanium Nitride. This offers extreme lubricity with a friction coefficient of .4 and surface hardness of 80-85 Rockwell C. The carriers patented and patent pending design features unique shrouded and forward facing gas ports that have also been resized so that gas is vented differently to a standard carrier. This results in a system that runs flatter with a smoother energy pulse with a softer start to carrier movement.

In addition, the system also runs cooler and cleaner, with less pressurization of the upper receiver when running a suppressed barrel. The flared boss at the tail of the carrier enhances the BCG's lock position within the upper and makes it more consistent, resulting in an accuracy improvement. All critical dimensions are hard turned / ground after heat treat and the gas key has been nitrided and then Tin coated for the best possible wear resistance. All E-BCG's feature the LANTAC CP-R360 patent pending domed head cam pin that is machined from 17-4PH Stainless Steel and hardened to H900 condition (45RC approx). The ultra-smooth head reduces wear within the upper receiver.

The E-BCG's forward porting and unique shape assist in reducing pressurization inside the upper receiver that can be caused by short barrel rifles running suppressors. However, it should be noted that the E-BCG is not a complete solution for this issue and all rifles are different. 'Over Gassed' guns will suffer to a larger extent from this problem.

Full Auto & Semi-Auto Compatible
Forward Porting enlarged vents
Balanced flared boss
8620 Carrier, Heat Treated, Hard Turned & Ground
MPI Carpenter 158 Bolt, Shot Peened, Hard Turned / Ground
CP-R360 Domed Cam Pin
Mil-Spec Gas Rings
Mil-Spec Staked Gas Key
Grade 8 Hardened Fasteners
All Hard Chrome surfaces are to MIL-STD-171
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