- Works with 6.8 SPC and 224 Valkyrie guns
- Nickel boron coated
- Shot peened
LWRC's Advanced Combat Bolt is an evolution in bolt design. With a fully supported bolt face, our ACB's lack the two undercuts on either side of the extractor pocket that weaken traditional bolts. In addition, the extractor utilizes a dual-spring design that increases extraction force and triples the service life. Machined out of a super-alloy formulated to take extreme loads without failure, LWRC's ACBs are also shot-peened for extra durability. A nickel-boron coating increases strength and lowers the coefficient of friction. All of these factors and more make our Six8 ACB the best choice for any 6.8mm SPC firearm.
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