The weak facet hand placement is effective with no Unique thumb rest. Thumb rest from Ronni operates on MCK if you want. Shoulder strap attaches on possibly. No pistol brace extension desired. MCK works by using pistol's slide release so no mal-features like Ronni. The only thing the Ronni has https://recover-20-2074174.qodsblog.com/26060987/the-ultimate-guide-to-glock-recover-kit