Threadless Compensator

[Snoopy47]

There are federal guidelines issued by the ATF for what "permanent" is.


The acceptable methods are as follows in order from least damaging to most damaging:
1. Blind pin with weld over the accessible end of the pin.

Two questions.............

1) This is a state law, is the state using federal guidelines as to what defines permanent?

2) Are the set screws on compensators considered blind pins if welded over?

I'm guessing getting the entire comp and barrel over 1100 degrees is not going to bode them well, and an aluminum comp would be nearing it's melting point.

[Snoopy47]

https://www.carvercustom.com/ecommerce/custom-glock-work/comp-installation---california-legal.cfm

Just found this:

Carver Customs will install a CA compliant Compensator.

I'm going to go this route. The guy knows what he's doing with Glocks, and has the competitive pedigree to support it.

Single source solution and done.

[ar15barrels]

Two questions.............

1) This is a state law, is the state using federal guidelines as to what defines permanent?

2) Are the set screws on compensators considered blind pins if welded over?

I'm guessing getting the entire comp and barrel over 1100 degrees is not going to bode them well, and an aluminum comp would be nearing it's melting point.

1. Yes.
2. Yes, but only when the set screw CAN be welded to the comp.
You can not weld a steel setscrew to an aluminum comp.
You can not solder an aluminum comp to a steel barrel.
For aluminum comps, a pin and weld is the only option.
I use a steel pin at the bottom and cover it with an aluminum pin that gets welded to the comp.

[Kestryll]

Just curious, why would pin and weld or even the concern over removal be an issue on a pistol if there’s no threads?

It sounds like there aren’t threads and there’s no minimum length on a pistol barrel.

Since permanence isn’t an issue why not just get an extended barrel, machine a groove in the bottom that lines up with a threaded hole in the compensator and then use a small cap screw with lock washer to ‘pin’ the compensator to the barrel?
Since there’s no minimum barrel length it doesn’t have to be a permanent pin.

[ar15barrels]

The perm attach is only required to ELIMINATE the barrel having threads when people are using a standard threaded barrel and threaded compensator which are the most commonly available.

If there's no threads or lugs, there's no need to perm attach.