556NATO
556NATO
BAD 16 UPPR AUTH ELITE 556 AMBI BLK
Battle Arms Development, Authority Elite, Complete Upper Receiver, 5.56 NATO, 16" Barrel, Fits AR-15..
BAD 16 UPPR AUTH ELITE 556AMBI C BLK
Battle Arms Development, Authority Elite, Complete Upper Receiver, 5.56 NATO, 16" Barrel, Fits AR-15..
BAD 16 UPPR WRKHORSE 556 AMBI BLK
Battle Arms Development, WORKHORSE, Complete Upper Receiver, 5.56 NATO, 16" Barrel, Fits AR-15, M-Lo..
BAD 16 UPPR WRKHORSE 556 AMBI C BLK
Battle Arms Development, WORKHORSE, Complete Upper Receiver, 5.56 NATO, 16" Barrel, Fits AR-15, M-Lo..
DD M4V7 UPPER 556 16" MLOK BLK
Daniel Defense, DDM4V7, Complete Upper, 223 Remington/5.56 NATO, 16" Cold Hammer Forged Barrel, 1:7 ..
FIGHT MCR DUAL FD UPR 556 MLOK 16.25
FightLite, Mission Configurable Rifle, 5.56 NATO, 16.25", Black, Includes (100)-M27 Links..
FIGHT MCR DUAL FD UPR 556 PIC 16.25"
FightLite, Mission Configurable Rifle, 5.56 NATO, 16.25", Black, Includes (100)-M27 Links..
FIGHT MCR MIL DF UPR 556 MLOK 16.25"
FightLite, Mission Configurable Rifle Dual-Feed Upper Receiver Assembly, 5.56 NATO, 16.25" Quick-Cha..
FIGHT MCR MIL DF UPR 556 PIC 16.25"
FightLite, (MCR) Mission Configurable Rifle, Milspec Complete Upper Receiver, 5.56 NATO, 16.25" Thre..
NOVESKE N4 AFGHAN UPPER 556 14.5PW
Noveske, N4 Afghan, Complete Upper Receiver, 5.56 NATO, 14.5" Stainless Steel Barrel, 1/2X28 Thread ..
NOVESKE N4 INFIDEL UPPER 556 13.7PW
Noveske, N4 Infidel, Complete Upper Receiver, 5.56 NATO, 13.7" Stainless Steel Barrel, 1/2X28 Thread..
RADICAL UPPR 556 16" 1-7 MLOK BLK
Radical Firearms, Complete Upper Assembly, 223 Remington/5.56 NATO, 16" Barrel, 1:7 Twist, Black, ML..
RRA CMPTL RRAGE 3G UPR 5.56NATO 16"
Rock River Arms, RRAge 3G, Complete Upper Receiver, 223 Remington/5.56 NATO, 16" Barrel, A2 Flash Hi..
SOLGW M4-L89 URG 14.5" 5.56 P/W ASR
Sons of Liberty Gun Works, M4-L89 Upper Receiver Group, Upper Receiver, 5.56 NATO, 14.5" Barrel with..
SPIKE'S 556 UPPER 14.5"PB RAIL/DYN
Spike's Tactical, Complete Upper Receiver, 223 Remington/5.56 NATO, 14.5" Barrel (16" OAL with Pinne..
SPIKE'S 556NATO M4 LE UPPER W/RAIL
Spike's Tactical, Complete Upper Receiver, 223 Remington/5.56 NATO, 16" Chrome Lined Barrel, 1:7 Twi..
BAD WORKHORSE 556 UPPR 16" BLK N/BCG
Battle Arms Development, WORKHORSE, Upper Receiver Assembly, 223 Remington/5.56 NATO, 16" Barrel, Mi..
COLT LE6920EPRII UPPER KIT 16.1"
Colt's Manufacturing, LE6920EPRII, Upper Receiver, 5.56 NATO, 16.1" Barrel, Fits AR-15/M4 Lower Rece..
COLT LE6920EPRII-PRO UPPER KIT 16.1"
Colt's Manufacturing, LE6920EPRII PRO, Upper Receiver, 5.56 NATO, 16.1" Barrel, Fits AR-15/M4 Lower ..
DD M4A1 FSP UPR RCVR 14.5 PW 556 FDE
Daniel Defense, M4A1, Upper, Complete Upper Receiver, 5.56 NATO, 14.5" Pinned (16" OAL), Daniel Defe..
DD M4A1 UPPER URG 14.5"PB 556 FDE
Daniel Defense, M4A1 Upper Receiver, 223 Remington/5.56 NATO, 14.5" Barrel (16" OAL with Pinned Brak..
DD M4V7 LW UPPER 556 16" MLOK BLK
Daniel Defense, DDM4V7 Lightweight, Complete Upper, 223 Remington/5.56 NATO, 16" Lightweight Barrel,..
FIGHT DFX UPR 556 PIC 16.25" BLK
FightLite, DFX, Drop-On Upper Receiver Group, 223 Remington/5.56 NATO, 16.25" Barrel, Fits AR15 Lowe..
GE SUPER DTY MOD1 5.56 13.9" URG BLK
Geissele Automatics, Super Duty MOD1, Complete Upper Receiver, 5.56 NATO, 13.9" Pinned (16" OAL) Bar..