For those who have SBRs and/or AR-Pistols this looks very intriguing for controlling muzzle climb.

NERO Brake - https://www.tactical-life.com/...arch-nero-556-brake/

I personally have never had an issue with muzzle climb on any semi auto pistol or rifle included my 1927 Thompson. I have seen films from War 2 showing the DI's having a long leather strap attached to the front swivel + standing on the end to prevent muzzle rise. This does not apply to the S+W model 29.That baby will rise.