DISQUS

TC · 3 months ago

The USMC checks out all their guns before they go to the range to shoot in the states. By check out I mean the do the head space gauges, barrel straigtness guage and a visual inspection.
Dan · 2 months ago

I am going to take exception to the extra power CS buffer spring as a generic reliability enhancer. It has been my experience that they will, more times than not, cause the BCG to short stroke and not lock open on the last round. They may also cause a bolt over base failure by preventing full stroke of the BCG. I say go with caution on the buffer spring. A better solution would be a heavier buffer... H2 or H3 in the carbine with a standard spring. My experience is based on a Colt 6721 with Pmags, lancers, and HK mags. No extraction or feed issues but several failures to lock back.