[bookman46]

Just received a set of barrel jaws from Mcarbo, there is an "inset" (?) on the back of each with a torx/star head in the middle (see photo)

. Could not find any explanation for these. Anyone know???

 

[RAT76]

KEL-TEC SUB-2000 Gen 2 Barrel Jaws

Best KEL TEC SUB 2000 Accessories and Tools for all of your KEL TEC SUB 2000 Gen 2 Upgrades. Excellent way to install your KEL TEC SUB 20000 Gen 2 Mods!

www.mcarbo.com

 

[Greg Tanner]

Looks like they hold in magnets to hold them in place on a bench vise.