Nefarious Arms H&K 416 Concept 11.5" 300blk Upper
Chrome Lined 300blk Nefarious Arms Barrel
HK Gas Block & Piston Assembly
416 Upper Receiver
Nefarious Arms 416 Barrel Nut
Nefarious Arms H&K 416 Concept 11.5" 300blk Upper
Chrome Lined 300blk Nefarious Arms Barrel
HK Gas Block & Piston Assembly
416 Upper Receiver
Nefarious Arms 416 Barrel Nut