FOSTECH COMPLETE LITE BOLT CARRIER GROUP (NICKEL BORON COATING) LOW MASS
X Products X-15 50 Round Drum Magazine for AR-15 & M16 - Black | Skeletonized | Hex Pattern
F5 MFG AR-15 .223/5.56 Skeletonized 50 Round Drum Magazine - Black | HEX Pattern
X Products X-15 50 Round Drum Magazine for AR-15 & M16 - FDE | Skeletonized | Hex Pattern