ZAFFIRI ZPS.3.19.BLK.CU.2 ZPS.3 G19 G3 UPPER 19BTB

Zaffiri Precision

Battle Arms Development WH556-URS Workhorse Upper Receiver Aluminum Black Anodized Receiver for AR15/M4

Battle Arms Development

FN 15 MILITARY COLLECTOR M16 LOWER RECEIVER

FN America

MODEL 1 UPPER 223WYL 16" GRY223 Wylde

Radian Weapons

DERYA UP-DY9ISL-AG DY9 ISLAND CMPLT UPPER/FRAME

DERYA FIREARMS

HK 51000384 MR556 Upper Receiver Kit 5.56mm for AR15/M16/M4

HK

ZAFFIRI UPK.19.5 UPPER PARTS KIT GLK 19GEN 5

Zaffiri Precision

Lead & Steel Llc ARC13URGODG All-Rounder Carbine Upper Receiver 5.56

LEAD & STEEL LLC

Patriot Ordnance Factory Minuteman Complete Upper 5.56x45mm NATO 16.50" Black Nitride Barrel Aluminum Black Anodized Receiver 14.50" M-LOK Handguard Lo Pro DI Gas Block (Mid Length)

Patriot Ordnance Factory

TAPCO TAP22036 UPPER PARTS KIT

Tapco

TacFire BU-556-16 Rifle Upper Assembly 5.56x45mm NATO Caliber with 16" Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver & M-LOK Handguard for AR-Platform Includes Bolt Carrier Group

TacFire

FN 15 MILITARY COLLECTOR M4 LOWER RECEIVER

FN America