Originally posted by u/Admirable_Scholar_36 at 2025-06-30T19:54:59Z
Sorry for lack of updates, finished my degree. After making a few barrels I changed the trunnion mount, rather than using pins, you can use flat bar, and file the receiving channel on the barrel to fit them. Again, this uses no existing gun parts, and you can ECM the barrel. You will need a drill press to making the screw holes in the receiver plates, but I am also working on jigs with drill bushings and printed housings to make the drilling process repeatable and accurate. Feel free to ask any questions.
Source: https://b.thumbs.redditmedia.com/RM_q2Co7K7eyfQtHT0imzGTsKa9x6MUGQcFLsV-N26U.jpg
u/bmoarpirate · 2025-06-30 20:10:24 UTC · score 4
Have you gotten this to the point of test firing yet? I'm very excited to see progress on the DIY delayed blowback front.
u/Admirable_Scholar_36 · 2025-06-30 20:15:21 UTC · score 10
Still ironing out details, I will be doing test firing on private land after I move, so it’ll probably be a few more months. Working full time as well, so it’s been tough to dedicate time to this.
u/bmoarpirate · 2025-06-30 20:42:31 UTC · score 1
I hear that - I'm also in the midst of a move. Life gets busy. Nice work though!
u/Admirable_Scholar_36 · 2025-06-30 20:45:38 UTC · score 3
Thanks!