RF 6.5 Grendel (Type 2) / 12.7x42mm M16 Carrier ( Melonite ) Specifications for Radical Firearms RF 6.5 Grendel ,Type 2/12.7x42mm M16 BCG, Melonite Bolt Carrier Group (BCG): Manufacturer: Radical Firearms Color: Black Finish: Melonite Cartridge: 6.5mm Grendel Bolt Material: 9310 Steel Carrier Material: 8620 Steel Package Contents: Radical Firearms RF 6.5 Grendel ,Type 2/12.7x42mm M16 BCG, Melonite Bolt Carrier Group
RedZero –
Bought one of these BCG's and wouldn't go full battery with a round. Turns out the bolt lugs are out of spec. Should have been 0.273 but were 0.279 which 0.006 is huge when your talking headspace. Unusable bolt. Did have a 0.136 bolt face but comes with a full length fireing pin where as it should be a shortened 3.266 fireing pin to account for the deeper bolt face to prevent over striking.