The One-Piece Bullet Proof® Magwell is CNC Machined from a solid billet of stainless steel and can be seamlessly fitted to any Wilson Combat Sentinel frame with the largest magazine well opening possible. Available in a variety of popular grip options, this new part is the toughest magwell on the market with a large internal opening that ensures that you never miss a reload again. The low-profile, radiused contours are legal for competition and ideal for carry guns. The perfectly machined checkering matches the Wilson Combat Sentinel handgun models and provides a classic look. Gunsmith fitting and permanent frame modification required for installation.