CMMG ACTION TUNING KIT MKG/MKGS/MK57 AR Parts Kits 38 Special 158gr Hard Cast

38 Special 158gr Hard Cast rounds are engineered for deep penetration in hunting and self-defense situations

-Note: the bits in these sets are designed to break before damaging the fastener itself

Bullet Type: InterLock SP

making it ideal for large game hunting and protection against dangerous wildlife

CMMG ACTION TUNING KIT MKG/MKGS/MK57 AR Parts Kits 38 Special 158gr Hard CastCMMG ACTION TUNING KITMKG MKGS MK57FEATURES: Allows you to adjust the action to your preference much like changing buffers or changing gas port settings on an adjustable gas block 1 oz weight, 2 oz weight, 3. 4 oz weight (standard 9mm), (3) . 250"x. 625" roll pins