Now this is a pistol brace. - SB Tactical SBA3 Pistol Stabilizing Brace for Mil-Spec Extension Platforms

Hands down the best pistol brace I've used. High quality, comfortable, stable, and easy to adjust. I suffered through 3 months of shooting my AR pistol with a Shockwave brace until I installed this SBA3. Night and day difference. Even has a smoother action compared to the KAK shockwave tube with the same buffer, spring, and BCG. Noticeable when shooting and very noticeable when manually charging the weapon.