u/IndependentJob1288

so i picked up a used 43 slide and a new Micro dagger frame recently, slide goes on the frame just fine, but when racking it, i can feel it getting slightly stiff towards the backside of the slide and frame and it’ll literally get stuck pulled all the way back without the slide release/catch playing any part in it at all, and i can jerk the gun or hit the back of the slide with my hand and it slams forward.
anyone have any ideas? i’m not new to pistols in any way, but also never had this issue unless i was building 80% frames. ive fired 30 rounds since getting the frame, 15 of them were 124 grain and 15 were 115 grain. still very tight/gets stuck.