Originally Posted by
jeep45238
No issues from mine that hasn't been ammo related (shooting steel case through it, cost effective and no worries on being hard on brass). One failure to feed. Still sends the empty cases over 20 yards with Wolf/Tula ammo.
It's an older one with a pic rail that I sent out to have milled for a paddle release. Diopter rear sight is functional and durable, get the armorer's tool for it if you plan on staying with irons, as zeroing is extremely difficult without it. 100 yard/battle sight sight picture takes a moment to understand, but is essentially a mechanical Eotech once you understand it. The diopter rear sight maxes out at 400m. Eventually I'd like to get a FFP optic on it and be able to get the distance out of it.
I do have the Magpul grip and safety on mine, along with an extended charging handle. I'd recommend all 3 of them. Mine has their old rail system that you bolt chunks of pic rail, and I'm leaning towards swapping out for a wide polymer forearm at some point in the future.
From what I understand, it's not a gun you want to switch between surpressed and unsupressed, as the locking wedge in the block needs a totally different angle to keep from beating the gun up.
Timmy makes a trigger unit for the MP5 that will work with these with swapping over a few parts, and I'm considering one if I stumble across one on mega-sale. My factory trigger is mushy and 8lbs or so in weight, but it's still a 4 MOA shooter with cheap steel case and irons (my eyes aren't that good anymore).