Ergo Grips AR-15/M16 M4 RECEIVER CASTLE NUT 4971-(B)

Ergo Grips AR-15/M16 M4 Receiver Castle Nut 4971-(B) (UPC 874748005333) Ergo Grips castle nut: 4971-(B) (UPC 874748005333). AR-15 M16 M4 mil-spec receiver end plate castle nut black steel precision machined stakeable slotted wrench flats secure lock tight fit made USA buffer tube retention commercial government spec upgrade replacement durable corrosion resistant tactical builds SBR pistol brace compatibility reliable tension. Ergo Grips 4971-(B) M4 Castle Nut: AR-15/M16 receiver. Black Steel: Machined mighty. Stakeable Design: Lock legend. Slotted Flats: Wrench warrior. Mil-Spec Fit: Tension true. USA AR: Ergo essential. Nut UPC 874748005333 Secure— Castle secure. Specs 4971-(B) Spec Details Model 4971-(B) M4 Castle Nut UPC 874748005333 Material Black Steel Fit AR-15/M16/M4 Receiver End Plate Features Stakeable Slotted Mil-Spec Durable Use Buffer Tube Lock Receiver Rock Lock— Ergo lock. Uses AR Build: Nut ninja. SBR Secure: Stake supreme. Pistol Brace: Tension titan. 4971-(B) Nut Nexus "Ergo castle nut clamps confidence!" clamp. "Nut value," victory. Ergo Grips AR-15 M4 Castle Nut 4.9/5. Clamps confidence. Constructed correct. Ergo Grips AR-15/M16 M4 Receiver Castle Nut: 4971-(B). The End