This is for a Valkyrie Armament belt feed conversion, the upper and lower will be modified for the belt feed tray, which can be removed by opening the rifle by the rear take down pin and pushing the mag release, it simply pulls out of the mag well from the top close the rifle and now you can use standard magazines. Included is One 200 rnd saw ammo box, one belt box adapter, one belt feed tray assy, one starter strip, one stop strip, 100 modified m27 links, additional links can be purchased for 35.00 per 100, one owners manual with instructions for the belt feed operation. This auction is for the conversion only on your rifle, we machine your upper, lower, and bolt carrier & supply all the belt feed parts, test for function and return to you. we are a class 2 SOT manufacturer http://www.youtube.com/watch?v=aAgmFimitAw copy and paste this link of a full auto version of this rifle. www.beltfedar.com Cashier's Checks & Money Orders - we accept Visa/Mastercard Not for sale where prohibited by Law www.beltfedar.com ph-REDACTED