01-20-2022, 05:52 AM
The problem with the CMMG Conversion is not the barrel twist, but rather the diameter of 22LR bullet as compared to the bore diameter of a .223/5356 barrel. Bullet is a touch smaller and as such it is not is full contact with bore.... bullet gets thrown different directions depending on what portion of the barrel it is making contact with as it exits the muzzle.
A Panic or two ago I bought a dedicated 22LR upper made by Tactical Solutions. More recently, my brother bought a M&P 15-22 with no regrets.
A Panic or two ago I bought a dedicated 22LR upper made by Tactical Solutions. More recently, my brother bought a M&P 15-22 with no regrets.