This is my AR15 SBR with CMMG .22LR conversion kit installed. 7.5" barrel, 1-7 twist rate with my Form 1 silencer installed. Vortex Strikefire green dot scope. I was worried that the short barrel and extreme screw rate would create havoc & result in knuckleballs downrange, but it shoots with reasonable accuracy.
It is a fun little rig and I will use it as the next step up for my grandkids graduating from BB guns. Light, quiet and unintimidating. The CMMG conversion has been running flawlessly. Wish I had bought it years ago, but the recent return to cheap and available .22LR ammo pushed me into it.
Seems on some rifles, the issue could cause runaway firing as well. I put in my serial number, and it came back as possibly affected. So I ordered the free head space gauge. My warranty repaired rifle passed the gauge test.
Here are a few of my favorites.
CZ 455 varmint with a home made Form 1 suppressor. with its Christiansen Arms MPR big brother behind it. Both these rifles shoot one hole groups...
Some groups made by the CZ above testing for a good bullet combinations at 50 yards.
My S&W Victory with another home made Form1 Titanium suppressor.