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5.56x45 NATO Semi Auto Rifles 40 Items

5.56x45 NATO Semi Auto Rifles Up To 18% Off + Rebate - 40 Products In Stock / 39 Models

The 5.56x45 NATO caliber is a versatile, lightweight cartridge designed for high-velocity, low-recoil performance.  The 5.56 Caliber Rifle, combined with great 5.56 ammunition, is known throughout the world for its mid-range precision.

We have 40 5.56x45 NATO Semi Auto Rifles from top brands like DANIEL DEFENSE, COLT, SIG SAUER, INC., & BRAVO COMPANY, you’ll find features like customizable rails, enhanced ergonomics, and lightweight construction. Take advantage of up to Up To 18% Off and elevate your shooting experience with a reliable 5.56x45 NATO rifle or any Semi Auto Rifles for more details.

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DANIEL DEFENSE - DD4 RIII 5.56MM RIFLE DANIEL DEFENSE - DD4 RIII 5.56MM RIFLE
5 Stars
(5.0)

$2,393.00

In stock
DANIEL DEFENSE - DDM4A1 14.5IN 5.56X45MM NATO MATTE BLACK 32+1RD DANIEL DEFENSE - DDM4A1 14.5IN 5.56X45MM NATO MATTE BLACK 32+1RD
5 Stars
(5.0)

$2,236.00

In stock
DANIEL DEFENSE - M4V7 CARBINE 5.56 16" BROWN DANIEL DEFENSE - M4V7 CARBINE 5.56 16" BROWN
5 Stars
(5.0)

$2,060.00

Online Only - In stock
SPRINGFIELD ARMORY - HELLION BULLPUP 5.56X45 NATO SEMI-AUTO RIFLE SPRINGFIELD ARMORY - HELLION BULLPUP 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(5.0)

$1,769.99 - $1,799.99

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BRAVO COMPANY - RECCE-16 16IN 5.56X45MM NATO BLACK 30+1RD BRAVO COMPANY - RECCE-16 16IN 5.56X45MM NATO BLACK 30+1RD
5 Stars
(5.0)

$1,660.00

Online Only - In stock
SIG SAUER, INC. - M400 SDI XSERIES 5.56X45 NATO SEMI-AUTO RIFLE SIG SAUER, INC. - M400 SDI XSERIES 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
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$1,499.99 - $1,599.99

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COLT - M4A1 CARBINE SOCOM 5.56X45 NATO SEMI-AUTO RIFLE COLT - M4A1 CARBINE SOCOM 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(5.0)

$1,536.70

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BRAVO COMPANY - MID-16 MOD 0 16IN 5.56X45MM NATO BLACK 30+1RD BRAVO COMPANY - MID-16 MOD 0 16IN 5.56X45MM NATO BLACK 30+1RD
5 Stars
(5.0)

$1,455.00

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COLT - M4 CARBINE MAGPUL SL BLACK 5.56MM NATO/223 REMINGTON RIFLE COLT - M4 CARBINE MAGPUL SL BLACK 5.56MM NATO/223 REMINGTON RIFLE
5 Stars
(5.0)

$1,159.99

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SPRINGFIELD ARMORY - SAINT VICTOR 5.56X45 NATO SEMI-AUTO RIFLE SPRINGFIELD ARMORY - SAINT VICTOR 5.56X45 NATO SEMI-AUTO RIFLE
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$986.99 - $1,029.99

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Product badge COLT - M4 CARBINE 5.56MM NATO/223 REMINGTON RIFLE COLT - M4 CARBINE 5.56MM NATO/223 REMINGTON RIFLE
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(5.0)

$999.99

$1,019.70

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SPRINGFIELD ARMORY - SAINT B5 5.56 SPRINGFIELD ARMORY - SAINT B5 5.56
5 Stars
(5.0)

$876.99

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DANIEL DEFENSE - DDM4V7 PRO 5.56X45 NATO SEMI-AUTO RIFLE DANIEL DEFENSE - DDM4V7 PRO 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(4.0)

$2,165.00 - $2,353.00

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BRAVO COMPANY - RECCE-18 MCMR 5.56 BRAVO COMPANY - RECCE-18 MCMR 5.56
5 Stars
(4.0)

$1,960.00

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DANIEL DEFENSE - DDM4 V7 5.56X45MM NATO SEMI-AUTO RIFLE DANIEL DEFENSE - DDM4 V7 5.56X45MM NATO SEMI-AUTO RIFLE
5 Stars
(3.5)

$1,872.00 - $2,060.00

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Product badge GEISSELE AUTOMATICS LLC - SUPER DUTY MOD1 5.56X45 NATO SEMI-AUTO RIFLE GEISSELE AUTOMATICS LLC - SUPER DUTY MOD1 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(3.5)

$1,642.94 - $1,996.10

$1,995.00 - $2,425.00

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SPRINGFIELD ARMORY - SA-16 A2 5.56X45 NATO SEMI-AUTO RIFLE SPRINGFIELD ARMORY - SA-16 A2 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(3.0)

$1,079.99

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SIG SAUER, INC. - MCX SPEAR-LT IR 5.56X45 NATO SEMI-AUTO RIFLE SIG SAUER, INC. - MCX SPEAR-LT IR 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,599.99

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DANIEL DEFENSE - MK12 5.56X45 NATO SEMI-AUTO RIFLE DANIEL DEFENSE - MK12 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,456.00

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DANIEL DEFENSE - DD4 M4A1RIII 5.56MM RIFLE DANIEL DEFENSE - DD4 M4A1RIII 5.56MM RIFLE
5 Stars
(0.0)

$2,393.00

In stock
DANIEL DEFENSE - DDM4 V9 5.56X45 NATO SEMI-AUTO RIFLE DANIEL DEFENSE - DDM4 V9 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,075.00

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DANIEL DEFENSE - DDM4 V7 SLW 5.56X45 NATO SEMI-AUTO RIFLE DANIEL DEFENSE - DDM4 V7 SLW 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,955.00

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COLT - CM556-16-M5S CARBINE 5.56MM RIFLE COLT - CM556-16-M5S CARBINE 5.56MM RIFLE
5 Stars
(0.0)

$1,929.99

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DANIEL DEFENSE - DDM4 V7S 5.56X45 NATO SEMI-AUTO SHORT BARRELED RIFLE DANIEL DEFENSE - DDM4 V7S 5.56X45 NATO SEMI-AUTO SHORT BARRELED RIFLE
5 Stars
(0.0)

$1,908.00

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SIG SAUER, INC. - M400-SENTRY 5.56X45 NATO SEMI-AUTO RIFLE WITH ROMEO5 GENII SIG SAUER, INC. - M400-SENTRY 5.56X45 NATO SEMI-AUTO RIFLE WITH ROMEO5 GENII
5 Stars
(0.0)

$1,749.99

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BRAVO COMPANY - RECCE-16 MKMR-A 5.56 BRAVO COMPANY - RECCE-16 MKMR-A 5.56
5 Stars
(0.0)

$1,675.00

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BRAVO COMPANY - RECCE-16 MCMR LW 5.56 BRAVO COMPANY - RECCE-16 MCMR LW 5.56
5 Stars
(0.0)

$1,660.00

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BRAVO COMPANY - RECCE-16 MCMR 5.56 BRAVO COMPANY - RECCE-16 MCMR 5.56
5 Stars
(0.0)

$1,660.00

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COLT - LE6920-FBP2 CARBINE 5.56MM RIFLE COLT - LE6920-FBP2 CARBINE 5.56MM RIFLE
5 Stars
(0.0)

$1,557.60

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Product badge SMITH & WESSON - M&P15 AXE 5.56X45 NATO SEMI-AUTO RIFLE SMITH & WESSON - M&P15 AXE 5.56X45 NATO SEMI-AUTO RIFLE
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$1,499.00

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Product badge SMITH & WESSON - M&P15 AXE SBR 5.56X45 NATO SEMI-AUTO RIFLE SMITH & WESSON - M&P15 AXE SBR 5.56X45 NATO SEMI-AUTO RIFLE
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$1,459.00 - $1,479.00

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COLT - ENHANCED PATROL 5.56MM NATO/223 REMINGTON RIFLE COLT - ENHANCED PATROL 5.56MM NATO/223 REMINGTON RIFLE
5 Stars
(0.0)

$1,349.99

In stock
Product badge SIG SAUER, INC. - M400 TREAD 2.0 5.56X45 NATO SEMI-AUTO RIFLE SIG SAUER, INC. - M400 TREAD 2.0 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
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$999.99 - $1,199.99

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COLT - MSR 5.56MM NATO/223 REMINGTON RIFLE COLT - MSR 5.56MM NATO/223 REMINGTON RIFLE
5 Stars
(0.0)

$1,170.40

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COLT - M4 MIDLENGTH CARBINE 5.56MM NATO/223 REMINGTON RIFLE COLT - M4 MIDLENGTH CARBINE 5.56MM NATO/223 REMINGTON RIFLE
5 Stars
(0.0)

$1,159.99

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COLT - TROOPER PATROL M4 CARBINE 5.56X45 NATO SEMI-AUTO RIFLE COLT - TROOPER PATROL M4 CARBINE 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,111.99

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Product badge SIG SAUER, INC. - M400 COIL V2 TREAD 5.56 NATO SEMI-AUTO RIFLE W/ROMEO 5 GEN II SIG SAUER, INC. - M400 COIL V2 TREAD 5.56 NATO SEMI-AUTO RIFLE W/ROMEO 5 GEN II
5 Stars
(0.0)

$1,109.99

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SPRINGFIELD ARMORY - SAINT VICTOR SBR 5.56X45 NATO SEMI-AUTO RIFLE SPRINGFIELD ARMORY - SAINT VICTOR SBR 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$986.99

Online Only - In stock
Product badge SMITH & WESSON - M&P®15 SPORT III 5.56 NATO SEMI-AUTO RIFLE W/CRIMSON TRACE SIGHT SMITH & WESSON - M&P®15 SPORT III 5.56 NATO SEMI-AUTO RIFLE W/CRIMSON TRACE SIGHT
5 Stars
(0.0)

$739.00

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Product badge SMITH & WESSON - M&P 15 SPORT III 5.56X45 NATO SEMI-AUTO RIFLE SMITH & WESSON - M&P 15 SPORT III 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$699.00

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KNIGHT'S ARMAMENT - SR-15 E3 MOD 2 M-LOK 5.56 16' KNIGHT'S ARMAMENT - SR-15 E3 MOD 2 M-LOK 5.56 16'
5 Stars
(5.0)

$3,179.00

Out of Stock
SPRINGFIELD ARMORY - SAINT VICTOR B5 5.56 SPRINGFIELD ARMORY - SAINT VICTOR B5 5.56
5 Stars
(5.0)

$986.99

Out of Stock
LMT DEFENSE - R20 RAHE REFERENCE 5.56X45 NATO SEMI-AUTO RIFLE LMT DEFENSE - R20 RAHE REFERENCE 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$3,239.10

Out of Stock
LMT DEFENSE - NEW ZEALAND REFERENCE 5.56X45 NATO SEMI-AUTO RIFLE LMT DEFENSE - NEW ZEALAND REFERENCE 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$3,239.10

Out of Stock
SIG SAUER, INC. - MCX-SPEAR LT IR 5.56X45 NATO SBR SEMI-AUTO RIFLE SIG SAUER, INC. - MCX-SPEAR LT IR 5.56X45 NATO SBR SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,499.99

Out of Stock
SIG SAUER, INC. - MCX-RATTLER LT 5.56X45 NATO SBR SEMI-AUTO RIFLE SIG SAUER, INC. - MCX-RATTLER LT 5.56X45 NATO SBR SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,499.99

Out of Stock
LMT DEFENSE - MARS-L MRP 5.56X45 NATO SEMI-AUTO RIFLE LMT DEFENSE - MARS-L MRP 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,474.10

Out of Stock
DANIEL DEFENSE - DD4 MK18RIII 5.56MM RIFLE DANIEL DEFENSE - DD4 MK18RIII 5.56MM RIFLE
5 Stars
(0.0)

$2,306.00

Out of Stock
LMT DEFENSE - DEFENDER-L 5.56X45 NATO SEMI-AUTO RIFLE LMT DEFENSE - DEFENDER-L 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,979.10

Out of Stock
BRAVO COMPANY - RECCE-14 MCMR 5.56 BRAVO COMPANY - RECCE-14 MCMR 5.56
5 Stars
(0.0)

$1,775.00

Out of Stock
Product badge SMITH & WESSON - PERFORMANCE CENTER M&P15 AXE 5.56X45 NATO SEMI-AUTO RIFLE SMITH & WESSON - PERFORMANCE CENTER M&P15 AXE 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,549.00

Out of Stock
COLT - M4 MONOLITHIC CARBINE 5.56MM NATO/223 REMINGTON RIFLE COLT - M4 MONOLITHIC CARBINE 5.56MM NATO/223 REMINGTON RIFLE
5 Stars
(0.0)

$1,449.99

Out of Stock
BRAVO COMPANY - M4 CARBINE MOD 0 16IN 5.56X45MM NATO BLACK 30+1RD BRAVO COMPANY - M4 CARBINE MOD 0 16IN 5.56X45MM NATO BLACK 30+1RD
5 Stars
(0.0)

$1,436.00

Out of Stock
SIG SAUER, INC. - M400 ROSE 5.56X45 NATO SEMI-AUTO RIFLE SIG SAUER, INC. - M400 ROSE 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
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$1,299.99

Out of Stock
ZASTAVA ARMS USA - PAP M90 5.56X45 AK RIFLE ZASTAVA ARMS USA - PAP M90 5.56X45 AK RIFLE
5 Stars
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$1,233.99

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FIGHTLITE INDUSTRIES - SCR RIFLE 5.56 MLOK POLYMER THREADED BARREL FIGHTLITE INDUSTRIES - SCR RIFLE 5.56 MLOK POLYMER THREADED BARREL
5 Stars
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$1,199.99

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Product badge COLT - M4 CARBINE MAGPUL SPORTER® 5.56 NATO SEMI-AUTO RIFLE COLT - M4 CARBINE MAGPUL SPORTER® 5.56 NATO SEMI-AUTO RIFLE
5 Stars
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$1,099.99

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SONS OF LIBERTY GUN WORKS - AR-15 GARAND THUMB TASK FORCE 69 14.5" MID-LENGTH RIFLE SONS OF LIBERTY GUN WORKS - AR-15 GARAND THUMB TASK FORCE 69 14.5" MID-LENGTH RIFLE
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Products: – of 58