The next-generation Girsan Double Stack Witness2311 CMX series takes the 1911 design to the next level. Compatible with many 1911 slides, barrels, and parts. Features a Bull barrel Lock-up w/compensator; ambi thumb safety, no grip safety; tuned trigger, 4.50 lbs; lightening cut slide; optic ready, RMSc footprint and 3-Dot sights.