This gun is in perfect condition. All upgrades are Tyrant Designs parts. Extended mag release, extended slide lock, extended take down lever, mag well extension, red pins, and trigger system. Comes with original box, and two magazines. One has the Tyrant Designs plus 3 extension. I have no less than $850 into this pistol. Has only had a 50 round box put through it for testing purposes. Beautiful piece. Asking $600