Magazine Extensions, tristar raptor

[Jonathan Waits]

So I have a tristar raptor 12 ga, 28inch made by arthemis. I have tried to google, and all that turns up is mods to models that are different than mine, so i took some photos to see if maybe you guys could help me out and identify what my thread pitch is etc and also what I might need to do in order to get a mag extension to fit.

 

[twss]

Use calipers set to .500" count the number of threads and multiply by 2. Example of 12 threads counted in .500" would be 24TPI.

 

[mike cyrwus]

Use calipers set to .500" count the number of threads and multiply by 2. Example of 12 threads counted in .500" would be 24TPI.

your helpful response has prevented a smart ass comment by me, thanks.
You might not do bad to give Tony a call and see if he and you can play swap a nut

 

[twss]

You're loosing your touch man if I can throw you off your game that bad.

I expected more from you.

 

[LoganbillJ]

A buddy had one as well. We got a mossberg extension to work when used with a barrel clamp. Threads are close but slightly smaller so without the barrel clamp it would walk off(jump threads) under recoil.

 

[Wall]

You might not do bad to give Tony a call and see if he and you can play swap a nut

Damn right we can!!!

 

[Jonathan Waits]

Well I have a baby due any day now, but hopefully will be able to get out to more of the matches this summer and fall.

 

[Harvey Aguilar Riley]

So what ended up happening? i just picked one of these up for 3 gun and i'm trying to decide what extension to buy?

 

[Jonathan Waits]

I haven't pursued it further. Did you get a Raptor or a Viper? Not sure if they are all that different.