DoubleStar's AR-15 6.5 Grendel steel bolt is shot-peened for extra surface hardness, then batch magnetic particle inspected (MPI) for cracks and flaws to ensure reliability and long service life. Comes completely assembled, with gas rings, extractor, and ejector installed. Our 6.5 Grendels use a Type 2 bolt with a bolt face depth of .136".
Specifications and Features:
Caliber: 6.5 Grendel
Material: 158 Carpenter Steel
Comes Assembled with Gas Rings, Extractor and Ejector
Made in the USA