9mm Home Built Pistol
Posted: Sat Feb 01, 2020 8:35 pm
My latest Project, or at least the latest one to finish. This thing took me 2 year to get to this point.
I call it ST9P
9mm Pistol
Uses 9mm Glock Magazines
AR15 Fire control Group and firing pin, and extractor.
Uzi recoil Spring
Ar15 Firing Pin
Originally I tried using a double feed magazine, but could not get reliability. getting the feed ramp right was a real chore and I made 5 different ones before I gave up and reprofiled the magwell to accept Glock Mags. 100% feed since then.
Upper is aluminum 1.5x1.5 x.125 square tubing
Lower, magwell, front and rear trunnion were machined from aluminum blocks
Bolt was a grade 8, 1/2 inch bolt profiled somewhat like a AR15 bolt
Bolt Carrier was made from 1.25x1.25 square steel With some additional weight added to slow the bolt down. Initially it was really fast and slamming the rear trunnion hard.
Barrel was a blank from Numerichs that I chamber and threaded myself.
I call it ST9P
9mm Pistol
Uses 9mm Glock Magazines
AR15 Fire control Group and firing pin, and extractor.
Uzi recoil Spring
Ar15 Firing Pin
Originally I tried using a double feed magazine, but could not get reliability. getting the feed ramp right was a real chore and I made 5 different ones before I gave up and reprofiled the magwell to accept Glock Mags. 100% feed since then.
Upper is aluminum 1.5x1.5 x.125 square tubing
Lower, magwell, front and rear trunnion were machined from aluminum blocks
Bolt was a grade 8, 1/2 inch bolt profiled somewhat like a AR15 bolt
Bolt Carrier was made from 1.25x1.25 square steel With some additional weight added to slow the bolt down. Initially it was really fast and slamming the rear trunnion hard.
Barrel was a blank from Numerichs that I chamber and threaded myself.