Sig P320 ThumbLock “Pro” Sig Larger Front Main Ports and

Larger Front Main Ports and flat bottom chambers with minimum ripples

Extreme back position possible for Maximum Lock

Designed for 2011 wide body frames but will work with any 2011/ 1911

no modification need to function

All last round lock back features have been disable

Sig P320 ThumbLock “Pro” Sig Larger Front Main Ports andDesigned for Sig P320 platform Ideal ThumbLock angles for optimum Grip consistency and recoil control Large Thumb pad area for easy index Solid High strength Steel CNC Billet for perfect quality and strength Coated for durability High probability of holster modification or the use of holsters designed for ThumbLocks ThumbLock will have slight play and will move but once grip is established, ThumbLock with not move during operation Designed, machined,