The OA 2311 Pro is the full-size ported powerhouse of the OA Defense line-up. Designed and optimized for duty use and high round count range days the OA 2311 Pro delivers maximum performance accuracy and reliability even under the harshest conditions. Integral V-porting in the 5 barrel and slide reduce muzzle rise with minimal sight picture obstruction even with +P self-defense ammunition. The Pro cut lightened slide profile increases cycle speed for faster follow-up shots and decrease split times. The enhanced Pro trigger treatment yields a slightly lighter trigger pull than the standard duty model triggers facilitating an even smoother trigger break for increased accuracy and feel. With five magazines and four slide plates included in the kit the OA 2311 Pro arrives with everything you need to maximize your performance. – Countoured slide and ported barrel reduce muzzle rise – Polymer grip with progressive texturing – Ships with five (5) magazines for utility and convenience – Enhanced 3.5-4.0lb Pro trigger + Springer Precision Extended Mag Release Paddle – KIT INCLUDES – OA 2311 Pro pistol with Black grip module – (3) 21-round magazines – (2) 17-round magazines – (4) Slide Plates Iron sight cover plate; RMR DPP & Holosun K/RMSc footprint optic mounting plates – Night Fision tritium night sights (standard height installed; intermediate height for RMR optic plate; suppressor height front sight for use with DPP optic plate) – Owners Manual & Firearm Safety Literature – Cable Safety Lock – Custom OA Defense range bag by Savior Equipment – SPECIFICATIONS – CALIBER 9x19mm – BARREL LENGTH 5 – DIMENSIONS 8.5 L 5.25 H 1.78 W – WEIGHT (UNLOADED) 28oz – TRIGGER WEIGHT 3.5-4.0lbs – CAPACITY 21+1 Rounds – FRAME 7075 Aluminum – GRIP Black Polymer