Built by LRB on one of there m25 X series receivers. Has there extended scope rail, Krieger SS med. wt. 18.5 barrel, SEI gas cylinder and coast guard brake. HRA bolt I picked up on the PX and sent to Hueygunner to refinish. He did his usual fantastic job. USGI stock with SAI krinkle finish that I also got on the PX from WCS. Leupold 2.5-8x36 mark 4 scope with Leupold QR rings. Sadlak op rod spring guide, USGI rear sight. Winny op rod and trigger group I got off the PX from Behr70 along with other USGI NIW small parts. Thanks to all here for helping me put this together.