The weak side hand placement works without a Distinctive thumb relaxation. Thumb rest from Ronni works on MCK In order for you. Shoulder strap attaches on either. No pistol brace extension wanted. MCK works by using pistol's slide release so no mal-functions like Ronni. The one thing the Ronni has https://collinrfqbj.nizarblog.com/26188977/the-fact-about-recover-20-20-that-no-one-is-suggesting