These are a supreme quality 9mm AR15 bolt that have been machined to run on either 9mm Glock Magazines or Colt magazine configurations with exacting tolerances, this is the new second generation JP 9mm bolt assembly that has been completly redesigned to eliminate the need for a Rear weight or central mass to work with the JP 9mm Silent Captured Spring without compromising the AR15 9mm bolt weight or reliability.
This JP 9mm AR bolt assembly is .9 oz. heavier than the Rock River Arms 9mm bolt with its central mass removed. When used in conjunction with the JP enterprises Silent Captured Spring, the complete JP 9mm operating system is slightly heavier than the complete Rock River Arms 9mm AR15 bolt and buffer combination.
JP 9mm AR Bolt Features
The JPBC-9MMA is compatible with both Colt SMG-style magazines and Glock pistol magazines.
The JPBC-9MMA is also compatible with JP side-charging uppers.
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