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hk 91, g3a3, cetme, ptr 91 head space (bolt gap)
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日期：2025-06-29
1. let the bolt and carriers snap fwd on an empty chamber 2. set weapon to fire 3. pull trigger 4. measure gap between bolt head and bolt carrier ... hk 91, g3a3, cetme, ptr 91 head space (bolt gap) This is a discussion on hk 91, g3a3, cetme, ptr 91 head ...看更多
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