Until there's "reasons" to change it. This has been sort of fun gun/development gun, and it's worked out well. That 3.5" buffer tube requires no changes to the BCG and is ingenuous I thought and made by Pantheon Arms. I figured if I was going to go small, I go as small as possible. It's been dead reliable for 300rnd and the impulse actually feels smoother to me. Using a blue force single point sling to work push/pull method, and while not as stable as shoulder fired, works well from the intended HD/SD distances. It's a fun little blaster. I chronod some basic white box (55g?) at average of 1,850 without the OSS can. Will do again with can and different ammo at some point. Obviously not the set up for AR purists.
https://imgur.com/oaD9pST