This is my brand new Nuprol Delta Sopmod have a look online it’s pre upgraded full metal o won’t bore you with the details you can look it up anywhere it’s never been used I have dry fires it 10 or so times to test the connection on the deans. This is setup as a perfect replica of a marine M4 complete with Acog , knights armament back up rear sight, tango down fore grip , knights armament rail covers , a classic M4A1 stock with zero wobble very happy with the fit, also I have acquired the very rare side mounted A frame sling point.  this built exactly as it should be setup by marines in the us but in airsoft form any questions message me thanks,