I have a nice Aimpoint T-1 clone for sale. I bought it to see if I like the smaller Aimpoint before I bought a real one. I mounted it on my M-4 and fired 600 rounds with it and I LOVED IT! I bought a real one to replace it! It definately stands up to live fire and held zero on the KZ rail grabber mount. TEN brightness settings for low and bright light. No MARKINGS! I painted it with Alumahyde Flat Dark Earth. The numbers were masked off for visability. A great set up at about one sixth the cost. Post "I'll Take It!" here to make the buy. Comes with the original box, extra battery, rubber lens covers and KZ Rail Grabber mount and literature!