I recently designed a detachable magazine system and 5 round magazine to fit the M-77 Mk2 and Hawkeye in .308 short action variety. I'll be looking for test drivers in the near future. This is a drop-in, plug and play system. Anodized aluminum 1 piece trigger guard, milled from billet 6061T6. The magazines are steel and nitrided, center feed design. We'll be giving 4 units away for testing and all we ask in return is non-biased feedback, be it good or bad, in a timely manner. Email responses to: [email protected] Thank You, Kevin Wyatt