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Description
GM Bolt carrier groups come MPI inspected. Perfect for your next 7.62x39 AR-15 build.
Specifications:
Brand GORILLA MACHINING
Caliber / Gauge 6.5 Grendell Type 2
Carrier Style Standard
Platform AR-15
Bolt Finish Parkerized
Bolt Material 9310 Steel
Carrier Finish Black Nitride
Gas Key Staked
Magnetic Particle Inspection Yes
Why do others substutute other inferior/untested steels? To decrease the cost of the part. Carpenter 158® is a high technology steel that is very expensive and can only be ordered in 20,000 lb mill runs. It is the only steel allowed by the US (and Foreign) Militarys for the very demanding needs of this high stress, critical part.
*NOTE: BARRELS & BOLTS MUST BE PROPERLY CHECKED FOR HEADSPACE PRIOR TO USE. FAILURE TO DO SO MAY RESULT IN DAMAGE, PERSONAL INJURY, OR DEATH*
LIFETIME WARRANTY:
Our products carry a lifetime, no questions asked, warranty. Simply put... Should any of our products fail, return it to us for a brand new replacement.
Bought one, after about 15 rounds the extractor broke.
Contacted for return, got a return label and will send it in.
Massiel took care of it, good people.
Rock solid warranty - just like they state - no questions 100% guarantee - hard to beat !