Semi Auto Rifles

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AR15s, AR10s & Hunting Rifles - 70 Semi-Auto Rifles

Semi-automatic rifles are a popular choice for home defense, tactical operations, and range shooting.  Enthusiasts enjoy customizing AR15s, AR10s, and even traditional semi-auto rifles.

Our line of 70 Semi-Auto Rifles includes Brownells own BRN line of rifles. Also, it contains semi-auto calibers like the 5.56x45 NATO, 22 Long Rifle, 7.62x39mm, 9mm Luger, 300 AAC Blackout and many others for hunting, target practice, tactical operations, and home defense.

Read the 4.6 Ratings out of 111 Reviews from verified buyers to help find the right semi-auto rifle to suit your needs and save Save Up To $20.00 on high-performance rifles. View all 319 Rifles at Brownells.

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Products:  33  –  64  of 189
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SIG SAUER, INC. - MCX-SPEAR 6.8X51MM SEMI-AUTO RIFLE SIG SAUER, INC. - MCX-SPEAR 6.8X51MM SEMI-AUTO RIFLE
5 Stars
(5.0)

$4,199.99

Online Only - In stock
DANIEL DEFENSE - DD4 RIII 5.56MM RIFLE DANIEL DEFENSE - DD4 RIII 5.56MM RIFLE
5 Stars
(5.0)

$2,393.00

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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
(5.0)

$1,499.99 - $1,599.99

Online Only - In stock
ZASTAVA ARMS USA - ZPAPM70 7.62x39MM SEMI-AUTO RIFLE ZASTAVA ARMS USA - ZPAPM70 7.62x39MM SEMI-AUTO RIFLE
5 Stars
(5.0)

$1,273.99

Online Only - In stock
COLT - M4 CARBINE 7.62X39MM SEMI-AUTO RIFLE COLT - M4 CARBINE 7.62X39MM SEMI-AUTO RIFLE
5 Stars
(5.0)

$1,159.99

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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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Product badge SMITH & WESSON - M&P 10 SPORT 308 WINCHESTER SEMI-AUTO RIFLE SMITH & WESSON - M&P 10 SPORT 308 WINCHESTER SEMI-AUTO RIFLE
5 Stars
(5.0)

$1,089.99

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HENRY REPEATING ARMS - HOMESTEADER 9MM LUGER CARBINE SEMI-AUTO RIFLE HENRY REPEATING ARMS - HOMESTEADER 9MM LUGER CARBINE SEMI-AUTO RIFLE
5 Stars
(5.0)

$706.99 - $885.99

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Product badge SMITH & WESSON - M&P FPC 9MM LUGER SEMI-AUTO RIFLE SMITH & WESSON - M&P FPC 9MM LUGER SEMI-AUTO RIFLE
5 Stars
(5.0)
Add to cart to see price

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Product badge SMITH & WESSON - M&P 15-22 SPORT 22 LONG RIFLE SEMI-AUTO RIFLE SMITH & WESSON - M&P 15-22 SPORT 22 LONG RIFLE SEMI-AUTO RIFLE
5 Stars
(5.0)

$429.99 - $499.99

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Product badge SMITH & WESSON - M&P 15-22 SPORT MOE SL 22 LONG RIFLE SEMI-AUTO RIFLE SMITH & WESSON - M&P 15-22 SPORT MOE SL 22 LONG RIFLE SEMI-AUTO RIFLE
5 Stars
(5.0)

$489.99

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ZASTAVA ARMS USA - ZPAP M70 AK-47 7.62X39 ZASTAVA ARMS USA - ZPAP M70 AK-47 7.62X39
5 Stars
(4.4)

$1,273.99

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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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Product badge SMITH & WESSON - M&P 15-22 SPORT 22 LONG RIFLE SEMI-AUTO RIFLE WITH RED/GREEN DOT SMITH & WESSON - M&P 15-22 SPORT 22 LONG RIFLE SEMI-AUTO RIFLE WITH RED/GREEN DOT
5 Stars
(4.0)

$449.99

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RUGER - PC CARBINE TACTICAL 9MM LUGER SEMI-AUTO RIFLE RUGER - PC CARBINE TACTICAL 9MM LUGER SEMI-AUTO RIFLE
5 Stars
(3.8)

$669.99 - $796.99

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BERGARA - BXR 22LR CHROMOLY BERGARA - BXR 22LR CHROMOLY
5 Stars
(3.7)

$599.99

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HAMMERELI ARMS - FORCE B1 22 LONG RIFLE STRAIGHT PULL BOLT ACTION RIFLE HAMMERELI ARMS - FORCE B1 22 LONG RIFLE STRAIGHT PULL BOLT ACTION RIFLE
5 Stars
(3.5)

$561.99 - $691.99

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Product badge SMITH & WESSON - M&P FPC 10MM AUTO SEMI-AUTO RIFLE SMITH & WESSON - M&P FPC 10MM AUTO SEMI-AUTO RIFLE
5 Stars
(2.5)

$629.99

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SIG SAUER, INC. - MCX-SPEAR SBR 6.8X51MM SEMI-AUTO RIFLE SIG SAUER, INC. - MCX-SPEAR SBR 6.8X51MM SEMI-AUTO RIFLE
5 Stars
(0.0)

$4,199.99

Online Only - In stock
PRIMARY WEAPONS - UXR ELITE RIFLE SYSTEM 223 WYLDE SEMI-AUTO RIFLE PRIMARY WEAPONS - UXR ELITE RIFLE SYSTEM 223 WYLDE SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,499.95 - $2,999.95

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PRIMARY WEAPONS - UXR ELITE RIFLE SYSTEM 300 AAC BLACKOUT SEMI-AUTO RIFLE PRIMARY WEAPONS - UXR ELITE RIFLE SYSTEM 300 AAC BLACKOUT SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,499.95 - $2,999.95

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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)

$2,701.80

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RISE ARMAMENT - RA-1121XR 6.5 CREEDMOOR SEMI-AUTO RIFLE RISE ARMAMENT - RA-1121XR 6.5 CREEDMOOR SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,655.00

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SIG SAUER, INC. - MCX SPEAR-LT 7.62X39MM SEMI-AUTO RIFLE SIG SAUER, INC. - MCX SPEAR-LT 7.62X39MM SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,599.99

Online Only - In stock
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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WILSON COMBAT - AR-15 RANGER WILSON COMBAT - AR-15 RANGER
5 Stars
(0.0)

$2,500.00

Online Only - Special Order. Please allow 4-5 weeks additional processing time.
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

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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

Online Only - In stock
WILSON COMBAT - RECON TACTICAL 6.5 GRENDEL AR-15 SEMI-AUTOMATIC RIFLE WILSON COMBAT - RECON TACTICAL 6.5 GRENDEL AR-15 SEMI-AUTOMATIC RIFLE
5 Stars
(0.0)

$2,450.00

Online Only - Special Order. Please allow 4-5 weeks additional processing time.
DANIEL DEFENSE - DD4 M4A1RIII 5.56MM RIFLE DANIEL DEFENSE - DD4 M4A1RIII 5.56MM RIFLE
5 Stars
(0.0)

$2,393.00

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PRIMARY WEAPONS - MK116 MOD 2-M 223 WYLDE SEMI-AUTO RIFLE PRIMARY WEAPONS - MK116 MOD 2-M 223 WYLDE SEMI-AUTO RIFLE
5 Stars
(0.0)

$2,199.95

Online Only - In stock
WILSON COMBAT - AR-15 PROTECTOR CARBINE WILSON COMBAT - AR-15 PROTECTOR CARBINE
5 Stars
(0.0)

$2,162.95

Online Only - Special Order. Please allow 4-5 weeks additional processing time.
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

Online Only - In stock
SPRINGFIELD ARMORY - M1A LOADED PRECISION 308 WINCHESTER SEMI-AUTO RIFLE SPRINGFIELD ARMORY - M1A LOADED PRECISION 308 WINCHESTER SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,859.99

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SPRINGFIELD ARMORY - M1A STANDARD 308 WINCHESTER SEMI-AUTO RIFLE SPRINGFIELD ARMORY - M1A STANDARD 308 WINCHESTER SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,569.99 - $1,659.99

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ZASTAVA ARMS USA - ZPAPM70 AK 7.62X39 FOLDING STOCK 16.3' ZASTAVA ARMS USA - ZPAPM70 AK 7.62X39 FOLDING STOCK 16.3'
5 Stars
(0.0)

$1,548.99

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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
5 Stars
(0.0)

$1,459.00 - $1,479.00

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Product badge SPRINGFIELD ARMORY - SAINT® VICTOR V2 308 WINCHESTER SEMI-AUTO RIFLE SPRINGFIELD ARMORY - SAINT® VICTOR V2 308 WINCHESTER SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,429.00 - $1,479.00

$1,449.00 - $1,479.00

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COLT - ENHANCED PATROL 7.62X39MM SEMI-AUTO RIFLE COLT - ENHANCED PATROL 7.62X39MM SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,469.99

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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

Online Only - In 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

Online Only - In stock
ZASTAVA ARMS USA - ZPAPM70 7.62X39MM SEMI-AUTO RIFLE ZASTAVA ARMS USA - ZPAPM70 7.62X39MM SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,286.99 - $1,433.99

Online Only - In stock
ZASTAVA ARMS USA - ZPAPM70 AK 7.62X39 FIXED STOCK 16.3' ZASTAVA ARMS USA - ZPAPM70 AK 7.62X39 FIXED STOCK 16.3'
5 Stars
(0.0)

$1,407.99

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Product badge COLT - EPR-II PATROL GEN2 SBR PRO 5.56 NATO/223 REM SEMI-AUTO RIFLE COLT - EPR-II PATROL GEN2 SBR PRO 5.56 NATO/223 REM SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,399.99

$1,419.99

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SIG SAUER, INC. - M400 ROSE 5.56X45 NATO SEMI-AUTO RIFLE SIG SAUER, INC. - M400 ROSE 5.56X45 NATO SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,399.99

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CZ USA - SCORPION 3+ CARBINE MAGPUL EDITION 9MM LUGER SEMI-AUTO RIFLE CZ USA - SCORPION 3+ CARBINE MAGPUL EDITION 9MM LUGER SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,399.99

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ZASTAVA ARMS USA - PAP M90 5.56X45 AK RIFLE ZASTAVA ARMS USA - PAP M90 5.56X45 AK RIFLE
5 Stars
(0.0)

$1,396.99

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Product badge COLT - EPR-II PATROL GEN2 PRO 5.56 NATO/223 REM SEMI-AUTO RIFLE COLT - EPR-II PATROL GEN2 PRO 5.56 NATO/223 REM SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,349.99

$1,369.99

Online Only - In stock
Product badge COLT - EPR-II PATROL GEN2 SBR 5.56 NATO/223 REM SEMI-AUTO RIFLE COLT - EPR-II PATROL GEN2 SBR 5.56 NATO/223 REM SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,219.99

$1,239.99

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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
(0.0)

$999.99 - $1,199.99

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Product badge SPRINGFIELD ARMORY - SAINT® VICTOR V2 AR-15 SEMI-AUTO RIFLE GEAR PAC™ SPRINGFIELD ARMORY - SAINT® VICTOR V2 AR-15 SEMI-AUTO RIFLE GEAR PAC™
5 Stars
(0.0)

$1,189.99 - $1,199.00

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Product badge COLT - EPR-II PATROL GEN2 5.56 NATO/223 REM SEMI-AUTO RIFLE COLT - EPR-II PATROL GEN2 5.56 NATO/223 REM SEMI-AUTO RIFLE
5 Stars
(0.0)

$1,169.99

$1,189.99

Online Only - In stock
SPRINGFIELD ARMORY - SAINT® VICTOR V2 5.56 NATO SEMI-AUTO AR-15 RIFLE SPRINGFIELD ARMORY - SAINT® VICTOR V2 5.56 NATO SEMI-AUTO AR-15 RIFLE
5 Stars
(0.0)

$1,099.00 - $1,129.00

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Product badge SPRINGFIELD ARMORY - SAINT® VICTOR V2 5.56 NATO P&W SEMI-AUTO AR15 RIFLE W/SBA3 BRACE SPRINGFIELD ARMORY - SAINT® VICTOR V2 5.56 NATO P&W SEMI-AUTO AR15 RIFLE W/SBA3 BRACE
5 Stars
(0.0)

$1,109.00 - $1,129.00

$1,129.00

Online Only - In stock
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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SMITH & WESSON - M&P™15 SPORT II Optics Ready - CA COMPLIANT SMITH & WESSON - M&P™15 SPORT II Optics Ready - CA COMPLIANT
5 Stars
(0.0)

$709.99

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BERGARA - BXR 22LR CARBON FIBER BERGARA - BXR 22LR CARBON FIBER
5 Stars
(0.0)

$699.99

Online Only - In stock
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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Product badge SMITH & WESSON - PERFORMANCE CENTER M&P 15-22 SPORT 22 LONG RIFLE SEMI-AUTO RIFLE SMITH & WESSON - PERFORMANCE CENTER M&P 15-22 SPORT 22 LONG RIFLE SEMI-AUTO RIFLE
5 Stars
(0.0)

$679.99

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CZ USA - SCORPION EVO 3 S1 22 LONG RIFLE SEMI-AUTO RIFLE CZ USA - SCORPION EVO 3 S1 22 LONG RIFLE SEMI-AUTO RIFLE
5 Stars
(0.0)

$659.00

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HAMMERELI ARMS - TAC R1 22 LONG RIFLE SEMI-AUTO RIFLE HAMMERELI ARMS - TAC R1 22 LONG RIFLE SEMI-AUTO RIFLE
5 Stars
(0.0)

$449.99 - $569.99

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Product badge SMITH & WESSON - M&P FPC 22 LONG RIFLE SEMI-AUTO RIFLE SMITH & WESSON - M&P FPC 22 LONG RIFLE SEMI-AUTO RIFLE
5 Stars
(0.0)

$499.00

Online Only - In stock
Products:  33  –  64  of 189