Heyo!
I’m very, very new to GBB and airsoft guns in general. I tried looking through older threads, but didn’t really find anything similar, so decided to post. Feel free to point me towards older resources if I missed any, though.
I just unboxed my TM G17 Gen5 and racked it a few times. If I rack the slide slowly, there’s a noticeable “hump” or “block” after a couple of centimeters. It feels like it’s hitting some sort of wall within the back half of the gun. If I continue racking, it does “go through it”, but I’m not sure this is to be expected. If I rack the gun fast, I don’t really feel it.
No mag inserted, and the hump is there even when the hammer is already cocked.
I also shot it on gas, without BBs. The slide cycles fine, but a couple of times it stopped just short of going fully forward.
For comparison, my local shooting club (IPSC incl. AA) has a bunch of Umarex G17 Gen5s. If I rack them slowly, they just go through smooth. No humps, no walls, nothing.
I can try taking a video, if it helps.
Cheers.