- Test fired by LMT
- Staked gas key
- Carpenter 158 steel shot peened bolt
- Forward assist serrations
- Chrome lined carrier and gas key
- Grade 8 fasteners
The LMT L7A3 Semi Auto BCG is made to true Mil Specifications. This bolt carrier group is test fired in LMT's factory to insure function. LMT also MPI and HP tests their BCG's. The high quality grade 8 fasteners used to secure the gas key are properly staked to ensure longevity of your BCG. The bolt is made from Carpenter 158 steel which at this point is the most proven material for AR15 bolts. The carrier and gas key are chrome lined for corrosion resistance and function. Chrome lining also makes cleaning much easier.
For more info, visit LMT