LMT Full-Auto 5.56 Enhanced AR-15 Bolt Carrier Group

Manufactured by Lewis Machine & Tool
Manufactured by Lewis Machine & Tool
1 Review

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The Lewis Machine and Tool enhanced bolt carrier group takes all that makes the standard BCG good and makes it great. The LMT enhanced BCG is designed to function in full-auto, suppressed, or short barrel rifles. The carrier is made from the same 8620 steel with a manganese phosphate finish, but it includes a host of new modification. This AR-15 carrier features an altered cam path that increases dwell time for more reliable extraction and a modified gas hole to improve the flow of gas across the bolt. In addition, it has more gas ports to help expel excessive gas to the side instead of into your face. The carrier also has multiple relief cuts to channel dirt and debris and maintain fluid movement. The LMT enhanced bolt carrier group is a simple upgrade that will improve the reliability of your AR-15.

  • 8620 steal carrier with Manganese Phosphate finish
  • Altered cam path for longer dwell time
  • Modified gas hole for improved flow
  • Additional gas port to direct excess gas away from your face
  • Relief grooves that keep your BCG running smooth even when dirty
  • Proprietary steel and finish for bolt
  • Modified locking lugs
  • Dual spring extractor
  • MPI and HPT
  • Made in the U.S.A.

The bolt is made from a proprietary steel that is harder than most standard bolts and has a slick finish that is easier to clean. The locking lugs have been modified to give them flexibility and strength when shooting over-gassed ammunition. It also features a “lobster tail” extractor that utilizes two springs to provide more consistent extraction and a longer spring life. IF you are looking to upgrade your rifle, the Lewis Machine & Tool AR-15 enhanced bolt carrier group is the one for you.
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BrandLewis Machine & Tool
Caliber Gauge5.56 NATO
Carrier FinishManganese Phosphate
Carrier Material8620 Carpenter Steel
Carrier StyleM16 Bolt Carrier
High Pressure TestedHigh Pressure Tested
Magnetic Particle InspectMagnetic Particle Inspected
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

1 review

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Best no compromise BCG


Perceived a lot less gas with suppressed use and runs cleaner. extremely reliable and gauges perfectly