Upper Receiver Barrel Nut Threading: Universal, Fits Both Tm Spec and RS Spec
Lower Receiver Buffer Tube Threading: Mil-Spec
CNC Machined by 6061 Aluminium
Hard Coated Anodized
Please notice modification required on this product during trigger box installation.
The SLR MWS B15 Ver. 2 receiver set is CNC machined out of 6061 aluminum. The individual serial number is engraved on each receiver and the original MWS charging handle, selector, and magazine release could be installed back on this receiver set. A very nice and neat feature has been added on this Ver. 2 Receiver, which is the ambidextrous bolt release function (all related hardware will be included).