The EAA Witness P Compact polymer features include integral locking system, auto firing pin block, windage adjustable sight and grip extension. Unlike most other semi-automatic pistols, the slide rides inside the frame rails rather than outside. This provides a very tight slide-to-frame fit, very good barrel lock-up and contributes to good accuracy. It is also one of the few production semi-automatic pistols available in the 10mm Auto chambering.