POTD: A Customized Colt LE6920 Posted April 30, 2015 in AR-15, Photo Of The Day with 9 CommentsTags: Colt Arnold sent us a photo of his Colt LE6920 AR-15. He has modded it with a with Smith muzzle brake, BCM KMR rail, PWS Enhanced Buffer Tube, VLTOR IMOD buttstock, and Geiselle S3G trigger. Thanks Arnold. Advertisement