2023年10月7日 · RCM MP5-E Bolt Head is a drop in Upgrade/Replacement for all existing MP5 style pistols and rifles. It has proven to increase function and reliability in semi & full auto weapons.

2016年10月23日 · MP5/10 was a new receiver and barrel, bolt group and stock components, bolt catch, cocking lever support, ejector and trigger housing, and most importantly three iterations of a reliable magazine, THE most difficult and expense part of any new firearm, AND many thousands of expensive 10mm rounds for testing.

2017年9月15日 · With the MAD bolt, my Omega MP5 clone has now reached Glock-like reliability. Last year, I was on the verge of returning it to Omega for a refund due to constant failure to eject issues, but, after I replaced the bolt with the MAD bolt, the failure to eject issues disappeared, with the exception of one brand of 9mm NATO +P ammo, Winchester.

2011年11月26日 · There are 3 different typrd of 9mm bolt heads, the regular early model, w/the flat face, the Action 3, and the F model. What is the difference between them, and why is the face contoured on the later models. I want to turn my Sp 89 into a SBR, K gun, should I have the A3 or the F bolt head, or...

2024年11月30日 · Here's my issue, my AP5 has about 2000 rounds through it, mostly uneventful and about 60% sppressed. No major issues, just replaced the extractor spring a couple of times. Recently I bought an RCM MP5-E bolt, installed it, and measured the bolt gap and it went up from 0.35 mm to 0.5 mm. So...

2016年9月2日 · The 9mm bolt head, the topic of the thread, does not have the lever. Good idea for the rifle calibers though. I don't use anything aside from fingers to reassemble my rifle caliber bolt groups. As said above, knowing the tricks makes all the difference in the world. I don't live on the boards but I have to admit, having seen what seems like hundreds of threads asking about how to get a 91/93 ...

2008年1月11日 · On full-auto bolt carriers, there is a ramp on the bottom of the right side that pushes the trip lever to release the catch. On semi-auto carriers, like UncleBilly said - that ramp is milled off so even if a trip lever is present, there's nothing to release it.

2013年5月12日 · What is the difference between a bolt carrier group from a MP5 and a MP5SD

2017年7月3日 · I finally had the chance to make it to the range with my new MAD MAX MP5 bolt head installed on my Omega OM-9. I had received the bolt head from Atlantic Firearms the other week and installed it last night. It went on nice and smooth with no issue in replacing the original bolt head. At the...

2009年4月1日 · I just got my gun back from Cohaire. It was sent in for warranty repair. My bolt gap was .0015"/.038mm before sending it in. It now measures at .008"/.203mm. So how close is this to MP5 spec? Thanks.