r/canadaguns • u/No_Holiday_7445 • Jun 02 '26

Fix my gun Derya TM22 screw

I got the new Derya TM22 pro and after the first cleaning the middle top screw is very loose and doesn’t go all the way in.

It was pretty firm first time I opened it and now it is very loose. Should I change the screw or anything else?

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u/M3NUTN Jun 02 '26

Is something jammed in the bolt hole causing it to not thread in properly?

Check that threads aren't stripped

2

u/No_Holiday_7445 Jun 02 '26

I think the threads are stripped since something came out with the screw itself

2

u/No_Holiday_7445 Jun 02 '26

If I take out the top rail and only screw the screw itself, then it fastens no problem, any idea?

1

u/M3NUTN Jun 02 '26

Because I can't see it I'm just spit balling here. If the bolt does screw in fine without the upper section on; it sounds like the bolt or hole in the receiver have some stripped threads where it would need to engage when the top portion is assembled.

Check the hole for metal shavings on the receiver, and check the threads on the bolt to see if anything is deformed.