ARRGH 16x1 LH Dead Air piston out of stock in the country!

Helocat · Apr 26, 2020

Just picked up a HK USP .45 with a 16x1 LH barrel, have my Dead Air Ghost good to go..... BUT the two pistons I have of course are not 16x1 LH I need. Dead Air and the rest of the US is Zippo on stock.

Time to buy a Y Axis lathe and make it mysel! Frustrating.

Honestly, I might just draw this sucker up in CAD and put it out to quote to Machine shops.

ORhutner · Apr 26, 2020

Dead Air just got up and running with their new shop/manufacturing partner. They were either down or doing minimal production for a couple months. They are stocking back up distribution so I would expect to see some soon. I am in the same boat with Keymo flash hiders and muzzle breaks.

Helocat · Apr 29, 2020

Talked with Dead air. They said similar, "we just got stuff up and running and will try to get the accessories done soon". I get it, but dont trust I will see this in the next month. SO plan b.

Buy a 14.5x1LH and tap it out to 16x1LH. The drill size for 16x1 is 15mm is only .0098" (inch) oversize radius, I probably don't have to chase a drill in the 14.5mm threads. I am going to try to direct tap it to the larger size with taking time and lots of Tapmagic fluid. Talking only cutting 1/2" of threads deep. Slow and steady I should be golden. Now is where I regret selling off my metal lathe! The 14.5MM LH threads will act as a guide and keep it centered. Originally I thought to buy a 1/2x28 piston and drill it out, then tap new. But found the 14.5MM LH piston so going that direction.