RimfireCentral.com Forums - View Single Post - Garrow Firearms Development 17hmr locked bolt gas operated AR upper
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Old 07-20-2019, 02:07 PM
M92pv4u's Avatar
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Jan 2018
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If the wsm closely follows the same design as the hmr it will have roller locking balls instead of a rotating bolt. The bolt will be lighter so it will have less harmonics from the bolt closing than a heavier bolt. I already have the hmr so I would like a matching upper in wsm a bonus is supporting a California based small business.
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