Accurately modelled M4/M16 compact weapon with Eotech HWS, Danlel Defense style bottom 3rd co-witness fixed iron sights, VLTOR stock, Noveske NQR handguard, 7.5" barrel with pistol length gas system (accurately scaled for .300BLK including 1:8 rifling and chamber dimensions), JP SCS buffer, Epsilon style muzzle device, VLTOR/BCM charging handle (original style), Ax type forward assist plunger, and MOE analog grip. The lower receiver is precisely modelled to M4 specifications including perfectly dimensioned hole positions and shelf depth to accomodate selective fire control group. Full-automatic capable trigger, hammer, disconnector, safety/selector and full-auto sear are also precisely modelled. EVERY component is accurately modelled, including all detents and springs. Model could be used for anything from gunsmith training to reliable engineering and machining.