Lower Parts
Fortis Manufacturing, Inc.
Fortis LEâ„¢ AR15 End Plate & Castle Nut System (K1-Tapered) - Blue
$42.70
Fortis Manufacturing, Inc.
Fortis K2 LE (Lightweight Enhanced) AR15 End Plate And Locking Castle Nut
$54.10
V Seven Weapon Systems
V Seven Ultra Light S7 Bolt Catch W/ Install Kit (ULBC-S7+ULBC-KIT) - NP3 Silver
$39.77