Now with dual detents.
The Marksman FirstStrike Breech Block set a standard for unparalleled FirstStrike feed and stability. Why reinvent the wheel? Because we can!
The second generation of the Marksman First Strike Breech Block includes two major improvements: Enhanced barrel threading for superior cross brand barrel compatibility and dual genuine MILSIG FirstStrike detents that cup the surface of the round for superior stability.
- Marksman FirstStrike Breech Block
- 2x MILSIG FirstStrike (M-Series) detents