I bought a BCG a few months ago with the hopes of completing a project.... Well the project didn't get anywhere. Now I have an M-16 BCG with no gun for it to go in. I had the receipt dunno what happened to it but I paid $159 + shipping. So, I'll let you have it for $155 shipped or $150 ftf. My loss is your gain. The carrier has never been fired or installed in a rifle. This is completely NEW. Below are the specs from the Manufacturer. Premium Complete M16/AR15 BCG with MPI Testing These BCG's are fully assembled and ready to drop in any AR15 or M16 rifle or pistol.* These are the heavier M16 carrier and will work with any AR15 platform rifle designed to use a standard BCG. Calibers this BCG will work with include 5.56, 223, 204,and 300BLK. Mil-Spec MIL-STD-171 Phosphate Finish Individually MPI Tested & Engraved. Bolt: 9310-Case hardened, Shot Peened, and MPI tested. Carrier: 8620 Tool Steel-(M16 full shroud)-Heat Treated, Case Hardened, & Chrome Lined. Gas Key: Chrome Lined-Grade 8 Hardened Fasteners, Permatex No. 3 sealed, Torqued to 60 in lbs, & Mil-Spec Staked Cam Pin: 4340 Steel-Heat Treated & Phosphated Extractor:Tool steel S7-Heat Treated to 48-53 Rockwell C & Phosphated Extractor Spring:Upgraded Chrome Silicon.