delayed blowback carrier for HK bolt
grabcad
This novel bolt carrier is adaptable to HK G3 bolts, enabling utilization of an HK bolt and trunnion for a streamlined, compact delayed blowback rifle. The design closely resembles the STG45 bolt yet incorporates an AR-15 extension to clear the trigger group while maintaining mass after removing the oprod section from HK bolts. Further refinements may be necessary.
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