The weak side hand placement works without having a Distinctive thumb rest. Thumb rest from Ronni is effective on MCK If you'd like. Shoulder strap attaches on possibly. No pistol brace extension wanted. MCK makes use of pistol's slide release so no mal-features like Ronni. The one thing the Ronni https://glock-stabilizer53063.tribunablog.com/not-known-factual-statements-about-recover-20-20-40158160