Building Your Own P320 with the MUP-1 Jig
If you're looking to dive into the world of custom firearm builds, getting your hands on a mup-1 jig is pretty much the first step for anyone interested in the Sig Sauer P320 platform. There's something uniquely satisfying about taking a flat piece of stainless steel and turning it into a functional internal chassis. It's not just about saving a few bucks—though that's a nice perk—it's more about the pride of knowing exactly how your sidearm works from the inside out. ...