Retaining suppressor thread cap

[CZsabre]

Got a new urban gray P01, very accurate an comfortable.

It features a threaded barrel for a suppressor and there is a cap to protect the threads.

After every magazine the cap is loose even though it is tightened every time (no tools) just cranked by hand.

I thought maybe an O-ring inside the cap may allow me to crank it very tight with compression added by the O-ring.

Any suggestions for keeping the cap always tight?

[DenStinett]

A drop or two of LocTite Blue (not Red ! )
http://www.loctiteproducts.com/p/t_lkr_blue/overview/Loctite-Threadlocker-Blue-242.htm

[Sigm4]

Viton o-rings, high temp and chemical resistant.  Here is what I use (coincidently these are the same size used on SilencerCo rimfire cans).  PM me you address and I'd be more than happy to drop a few in an envelope to you (I have a few ), they last forever when used to retain a thread protector.

[Kenneth]

What size do you get? That Amazon has a lot of options.


Sent from my iPhone using Tapatalk

[Sigm4]

Since I'm already ordering the 013 for the SilencerCo cans, that's what I use.  Have not had any issues with them so far.

[sleepyhead]

Haven't had any luck with the o rings. The barrel doesn't really have a shoulder to have the o ring compress. The o ring ends up on the barrel rather than between the thread protector and the threads.

[Sigm4]

Haven't had any luck with the o rings. The barrel doesn't really have a shoulder to have the o ring compress. The o ring ends up on the barrel rather than between the thread protector and the threads.

Most of mine don't either, but I've found if i push the o-ring towards the last thread the cap will engage it with a least a turn or two left.  Thing is I don't have to snug the cap up to the end of the threads, rather leave it backed off a half turn or so.  The resistance from the o-ring is enough to keep it from backing off while shooting.