AIM .308/7.62x51 Caliber BDG Titanium Nitride Bolt Carrier Groups. We are having these built to our exacting standards. The Bolt is shot peened and manufactured out of 9310 Tool Steel with a 4140 Machined Extractor. The 8620 tool steel carrier is the more common DPMS pattern. Bolt and Carrier are Titanium Nitrided. PROUDLY MADE IN THE USA! More information below.
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