Originally Posted By blackdogmachine:
we have our own bolt hold open feature in the gen 3 steel feed lip mags, the follower has a tab on it that can activate the BHO device that SPIKE has, you dont need all the extra parts like the cmmg platform
This sounds like a winner. I'd be interested in going this route because;
1) The CMMG system is unreliable, working most of the time, but often failing when it is most important not to (I'm running 2 of them, 300 to 400 rounds or more a week, very disappointing even after careful adjustment).
2) A dedicated catch in the lower would restrict that lower from being readily swapable to centerfire.
3) My plastic feed lip BD's only seem to last about 3500 to 4000 rounds before stove piping becomes an issue.
Really looking forward to trying one of these mags.