5.56mm NATO

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7%
Luth-AR
Luth-AR 16" Lightweight Barrel Complete Upper Receiver, 223 Rem/556NATO, Black Finish, 15" Palm Handguard Keymod, 1:9...
$399.95 $373.32
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7%
Luth-AR
Luth-AR 18" MARK12 Complete Upper Assembly, Black Finish, 15" Palm Handguard Keymod, 1:9 Twist, Complete Barrel...
$449.95 $419.16
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9%
Black Rain Ordnance
Black Rain Ordnance 556 SOCOM, Complete Upper, 556NATO, 16" SOCOM Profile Chromoly NATO Barrel, Black Finish, 1:7...
$769.00 $699.37
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7%
Colt's Manufacturing
$749.00 $694.22
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1%
Colt's Manufacturing
$950.00 $941.94
Out of stock
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7%
Colt's Manufacturing
Colt's Manufacturing Upper, 223 Rem/556NATO, 11.5" Lightweight Barrel, Black Finish, A2 Fixed Front Sight, Magpul...
$749.00 $694.22
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7%
Sig Sauer
Colt's Manufacturing Upper Receiver, 223 Rem/556NATO, 16" M4 Barrel, Black Finish, A2 Flash Hider, Four Rail...
$1,099.00 $1,018.67
Out of stock
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7%
Colt's Manufacturing
Colt's Manufacturing Upper Receiver, 223 Rem/556NATO, 16.1" M4 Barrel, Black Finish, A2 Fixed Front Sight, Magpul...
$749.00 $694.22
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9%
Daniel Defense
DD M4 V9 UPPER URG 16" 556NATO 15.0
Daniel Defense M4 Volume 9 Upper, Fits AR Rifles, 223 Rem/556NATO, 16" HF Barrel, 1:7 Twist, Daniel Defense...
$1,133.00 $1,026.91
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9%
Daniel Defense
DD M4A1 UPPER URG 14.5"PB 556 FDE
Daniel Defense M4A1 Upper Receiver, 223 Rem/556NATO, 14.5" Barrel (16" OAL with Pinned Brake), Carbine Length Gas...
$1,280.00 $1,160.30
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9%
Daniel Defense
Daniel Defense Upper, M4 Volume 11, 223 Rem/556NATO, 16" Lightweight Barrel, 1:7 Twist, Black Finish 23-151-02077-047
$1,038.00 $940.91
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9%
Daniel Defense
DD M4V11 UPPER URG 16" 556NATO
Daniel Defense Upper, M4 Volume 11, 223 Rem/556NATO, 16" Barrel,1:7 Twist, Black Finish 23-151-02197-047
$1,038.00 $940.91
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9%
Daniel Defense
Daniel Defense DDM4V7, Upper, 223 Rem/556NATO, 16" Cold Hammer Forged Barrel, 1:7 Twist, Black Finish, MLOK...
$1,038.00 $940.91
Out of stock
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9%
Daniel Defense
Daniel Defense DDM4V7 S Upper Receiver Group, 556NATO, 11.5" Barrel, 1:7 Twist, Daniel Defense MFR 10" MLOK...
$1,038.00 $940.91
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9%
Daniel Defense
Daniel Defense Upper, MK18 URG, 556NATO, 10.3" Hammer Forged Barrel , 1:7 Twist, Flat Top, Black Finish 23-004-08013-006
$1,206.00 $1,093.35
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9%
Daniel Defense
DD MK18 URG UPPER 556 10.3"(MK18 FDE
Daniel Defense Upper Receiver, MK18 URG, 556NATO, 10.3" Hammer Forged Barrel, 1:7 Twist, Flat Top Receiver, Flat Dark...
$1,206.00 $1,093.35
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14%
DPMS
DPMS Upper, Oracle, 556NATO, 16" Barrel, Fits AR-15, Flat Top, Black Finish 60585
$399.00 $344.14
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15%
DPMS
DPMS UPPER FLT TOP 556 16" HBAR A2FH
DPMS Upper, 223 Rem, 556NATO, Black, A2 Flash Hider, 16" Heavy Barrel 60580
$519.00 $441.35
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14%
I.O. Inc.
IO UPPER RECEIVER 5.56NATO 16" MLOK
I.O. Inc. Upper Receiver, 223 Rem/556NATO, 16" Barrel, 15" M-Lok Rail, Black Finish, Does not include BCG or Charging...
$349.99 $301.93
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14%
I.O. Inc.
IO UPPER RECEIVER 5.56NATO 7.5" MLOK
I.O. Inc. Upper Receiver, 223 Rem/556NATO, 7.5" Barrel, 7" Rail, Black Finish AARUML7
$349.99 $301.93
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10%
Radical Firearms
RADICAL COMPLETE UPPR 556 16" 12"FCR
Radical Firearms Complete Upper Assembly, 223 Rem/556NATO, 16" SOCOM (Mid) Barrel, 12" FCR, A2 Flash Hider, Black...
$383.95 $344.50
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10%
Radical Firearms
Radical Firearms Complete Upper Assembly, 223 Rem/556NATO, 16" SOCOM (Mid) Barrel, 15" FCR, A2 Flash Hider, Black...
$383.95 $344.50
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11%
Radical Firearms
Radical Firearms Complete Upper Assembly, 223 Rem/556NATO, 16" SOCOM (Mid) Barrel, 15" RPR, Zero Impulse Muzzle...
$463.95 $410.94
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10%
Spike's Tactical
Spike's Tactical Upper Receiver, 223 Rem/556NATO, 16" Barrel, 1:7 Twist, Black Finish, Mid-length Gas System,...
$590.00 $531.74
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