I am selling a Lasermax which came off my G21SF but will also fit the regular 21 and the G20 as well. Part number LMS-1151PFGR. I have had this on my gun for only a few months with less than 200 rounds fired while installed. It comes with everything included by Lasermax: factory box, instructions, install tool, slide lock spring, slide lock, laser, etc. Perfect working condition. I paid $349.99+ tax at Heberts but am looking to sell for $235.00 shipped or $230.00 FTF in BTR.