Semi-Auto Firearms

Compare semi-auto prices from top retailers. Find the best deals across all major brands.

Top Semi-Auto Brands

Sig Sauer 2,210 Glock 1,860 Springfield Armory 1,536 Smith & Wesson 1,465 CMMG 1,351 Ruger 1,336

Semi-Auto Calibers

9mm Luger 12,796 5.56x45mm NATO 5,707 12 Gauge 4,795 45 ACP 2,980 22 LR 2,713 308 Winchester 1,456

All Semi-Auto Firearms Products (41,563 results)

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Aero Precision RM10.3 M4E1-T Complete Upper w/11.5in 5.56 Barrel FDE - Aero Precision

Aero Precision RM10.3 M4E1-T Complete Upper w/11.5in 5.56 Barrel FDE

$569.95 $599.95

● Availability Unknown

Aero Precision Complete Upper Receiver M4E1-T 5.56x45mm NATO 11.5in Government Carbine Length 1 in 7 1/2 x 28 10.3in A2 Flash Hider Anodized OD Green - Aero Precision

Aero Precision Complete Upper Receiver M4E1-T 5.56x45mm NATO 11.5in Government Carbine Length 1 in 7 1/2 x 28 10.3in A2 Flash Hider Anodized OD Green

● Availability Unknown

AERO PRECISION AR-15 5.56 NATO / 223 Rem 16" 30rd - Black - Aero Precision

AERO PRECISION AR-15 5.56 NATO / 223 Rem 16" 30rd - Black

● Availability Unknown

AERO PRECISION M4E1-T-NO FA-Comp. Upper 16" 5.56 Mid, SM15 - Aero Precision

AERO PRECISION M4E1-T-NO FA-Comp. Upper 16" 5.56 Mid, SM15

$550.95 $579.99

● Availability Unknown

Aero Precision Complete Upper M5 6.5 Creedmoor 22in Rifle Length 1/8 Twist Stainless Steel w/ ATLAS S-ONE Handguard FDE - Aero Precision

Aero Precision Complete Upper M5 6.5 Creedmoor 22in Rifle Length 1/8 Twist Stainless Steel w/ ATLAS S-ONE Handguard FDE

● In Stock

Aero Precision Complete Upper M4E1-T 6.5 Grendel 18in 6.5 Grendel Rifle Length 1/8 Twist 5/8x24 Thread Stainless Steel w/ ATLAS S-ONE Handguard Black - Aero Precision

Aero Precision Complete Upper M4E1-T 6.5 Grendel 18in 6.5 Grendel Rifle Length 1/8 Twist 5/8x24 Thread Stainless Steel w/ ATLAS S-ONE Handguard Black

$622.95 $654.99

● Availability Unknown

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 10.5 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black - Aero Precision

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 10.5 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black

$369.99 $389.99

● Availability Unknown

Aero Precision Complete Upper Receiver M4E1-T .300 16in Blackout Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black - Aero Precision

Aero Precision Complete Upper Receiver M4E1-T .300 16in Blackout Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black

$564.99 $594.99

● Availability Unknown

Aero Precision M4E1-T Complete Upper Receiver Threaded 5.56x45mm Mid Pencil 16in Barrel ATLAS S-ONE 15in Handguard M-LOK Anodized Black - Aero Precision

Aero Precision M4E1-T Complete Upper Receiver Threaded 5.56x45mm Mid Pencil 16in Barrel ATLAS S-ONE 15in Handguard M-LOK Anodized Black

$564.99 $594.99

● Availability Unknown

TAYLORS AND COMPANY 1911 45 ACP 5" 8rd - Black - Taylors and Company

Taylors and Company

TAYLORS AND COMPANY 1911 45 ACP 5" 8rd - Black

$626.99 $699.99

● In Stock

American Tactical Omni Hybrid Maxx Pistol 5.56 7.5 Barrel 60-Rounds w/ Nano Kit - American Tactical

American Tactical

American Tactical Omni Hybrid Maxx Pistol 5.56 7.5 Barrel 60-Rounds w/ Nano Kit

● Availability Unknown

AMERICAN TACTICAL IMPORTS Scout SA-Series 12 Gauge 3" 26" 4rd - Black - American Tactical

American Tactical

AMERICAN TACTICAL IMPORTS Scout SA-Series 12 Gauge 3" 26" 4rd - Black

● Availability Unknown

AMERICAN TACTICAL IMPORTS AR15 Milsport RIA Alum Rec 300Blk 16" Rgr Stk 30rd - American Tactical

American Tactical

AMERICAN TACTICAL IMPORTS AR15 Milsport RIA Alum Rec 300Blk 16" Rgr Stk 30rd

● In Stock

AMERICAN TACTICAL IMPORTS Milsport RIA P3P 5.56 16" BBL 13" KM M4 Stock - American Tactical

American Tactical

AMERICAN TACTICAL IMPORTS Milsport RIA P3P 5.56 16" BBL 13" KM M4 Stock

$384.00 $388.99

● In Stock

Alexander Arms Varmint Predator Semi Automatic Rifle 17 Hornady Magnum Rimfire (HMR) 18" Fluted Black Threaded Barrel Urban Gray Frame Urban Camo Pistol Grip - Alexander Arms

Alexander Arms Varmint Predator Semi Automatic Rifle 17 Hornady Magnum Rimfire (HMR) 18" Fluted Black Threaded Barrel Urban Gray Frame Urban Camo Pistol Grip

● Availability Unknown

ALEXANDER ARMS Highlander 6.5 Grendel 11.5" 10rd - Black - Alexander Arms

ALEXANDER ARMS Highlander 6.5 Grendel 11.5" 10rd - Black

● Availability Unknown

Alexander Arms The Blitz Semi Automatic Rifle 6.5 Grendel 18" Black Threaded Barrel Flat Dark Earth Frame Flat Dark Earth Pistol Grip - Alexander Arms

Alexander Arms The Blitz Semi Automatic Rifle 6.5 Grendel 18" Black Threaded Barrel Flat Dark Earth Frame Flat Dark Earth Pistol Grip

$1,599.00 $2,334.99

● In Stock

Alexander Arms Tactical Flat Dark Earth 6.5 Grendel 16 Barrel 10-Rounds - Alexander Arms

Alexander Arms Tactical Flat Dark Earth 6.5 Grendel 16 Barrel 10-Rounds

● Availability Unknown

KNIGHTS ARMAMENT 5.56mm SR-15 KS-3, 11.5", RIFLE SYSTEM - Knights Armament

Knights Armament

KNIGHTS ARMAMENT 5.56mm SR-15 KS-3, 11.5", RIFLE SYSTEM

● Availability Unknown

KNIGHTS ARMAMENT 5.56mm SR-15 KS-1, 13.7", RIFLE SYSTEM - Knights Armament

Knights Armament

KNIGHTS ARMAMENT 5.56mm SR-15 KS-1, 13.7", RIFLE SYSTEM

● Availability Unknown

KNIGHTS ARMAMENT SR-25 PC 7.62 / 308 Win 16" Black 20rd - Knights Armament

Knights Armament

KNIGHTS ARMAMENT SR-25 PC 7.62 / 308 Win 16" Black 20rd

● Availability Unknown

DANIEL DEFENSE DDM4 5.56 NATO 16" 10rd - Crocodile Rattlecan - Daniel Defense

DANIEL DEFENSE DDM4 5.56 NATO 16" 10rd - Crocodile Rattlecan

● Availability Unknown

DANIEL DEFENSE DDM4 V9 5.56 NATO 16" 32rd - Crocodile Rattlecan - Daniel Defense

DANIEL DEFENSE DDM4 V9 5.56 NATO 16" 32rd - Crocodile Rattlecan

● Out of Stock

DANIEL DEFENSE DDM4 V7 5.56 NATO 16" 32rd - FDE - Daniel Defense

DANIEL DEFENSE DDM4 V7 5.56 NATO 16" 32rd - FDE

● Out of Stock