Wilson Combat Shok-Buff Recoil System Full-Size 64G. Fits: A F N & O in .45 ACP. Pkg. Includes: 1 416 Stainless One-Piece Guide Rod & Plug 6 Shok-Buff Buffers 1 Extra-Power Firing Pin Spring 1 Extra-Power Heavy-Duty Recoil Spring (EP) 1 Reduced Power...