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Guns > Centerfire Rifles > Semi-Auto Action >

How To Purchase Guns Online

Semi-Automatic Rifles

  Gander Mountain has a great selection of semi-auto rifles for sale. Choose from .223 Rem./5.56 NATO, .223 Wylde, .308 Win. caliber and more from Century Arms, Bushmaster, Ruger, Colt, American Tactical Imports, and many other top brands.

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Ruger AR-556 Centerfire Rifle

Ruger AR-556 Centerfire Rifle

Key Features
  • 7075-T6 Aluminum Upper Lower

  • 16.1" Cold Hammer-Forged Barrel

  • Six-Position Telescopic Stock

  • Adjustable Front Rear Sights

  • 30-Round MagPul PMAG Magazine

$699.99
LWRC International IC-DI Centerfire Rifle

New! LWRC International IC-DI Centerfire Rifle

Key Features
  • Direct Impingement Gas System

  • Cold-Hammer Forged, Spiral Fluted Barrel

  • Modular, One-Piece, Free-Float Rail

  • Magpul MOE Grip Angled Foregrip

  • Fully-Ambidextrous Lower Controls

$1,669.99
American Tactical Imports Omni Hybrid Maxx SOCOM Centerfire Rifle

New! American Tactical Imports Omni Hybrid Maxx SOCOM Centerfire ...

Key Features
  • Metal-Reinforced Polymer Receiver

  • 16" Chrome-Lined SOCOM Barrel

  • Mission First Tactical Battlelink Buttstock

  • Aero Precision 12" Quantum MLOK Forend

  • 30-Round Polymer Magazine

$699.99
$649.99
Colt M4 Carbine Centerfire Rifle

Colt M4 Carbine Centerfire Rifle

Key Features
  • Chrome-Lined Barrel

  • Adjustable Front and Rear Sight

  • Matte Black Finish

$999.99
Colt LE6920 MPS-B Centerfire Rifle

Colt LE6920 MPS-B Centerfire Rifle

Key Features
  • 16.1" Chrome-Lined Barrel

  • Magpul MOE SL Handguards

  • Magpul MOE SL Carbine Stock

  • Magpul MOE Pistol Grip/Vertical Grip

  • Magpul Back-Up Sights

$1,099.99
Century Arms C308 Sporter Centerfire Rifle

Century Arms C308 Sporter Centerfire Rifle

Key Features
  • Roller-Locked Delayed Blowback System

  • Fluted Chamber for Reliable Cycling

  • Permanently- Mounted Picatinny Rail

  • Durable Polymer Furniture

$699.99
American Tactical Imports Mil-Sport M4 KeyMod Carbine Centerfire Rifle

American Tactical Imports Mil-Sport M4 KeyMod Carbine Centerfire ...

Key Features
  • 10" Free-Floating KeyMod Handguard

  • 16.1" Phosphate-Coated M4-Style Barrel

  • 6-Position Collapsible Rogers Super-Stoc

  • Full-Length Picatinny Top-Rail

  • 30-Round Magazine Included

$699.99
$649.99
Daniel Defense DDM4 V7 Centerfire Rifle

Daniel Defense DDM4 V7 Centerfire Rifle

Key Features
  • 16" Cold Hammer-Forged Barrel

  • Free-Floating MFR XS 15.0 M-LOK Handguard

  • Enhanced, Flared Magazine Well

  • 6-Position Telescoping Stock

  • 1/228 Threaded Muzzle w/ Flash Suppressor

$1,599.99
Hi-Point Firearms 4095TS RD Centerfire Rifle Package

Hi-Point Firearms 4095TS RD Centerfire Rifle Package

Key Features
  • Fully-Adjustable Sights

  • Multiple Picatinny Rails

  • Internal Recoil Buffer

  • Last Round Lock Open

  • BSA Red Dot Sight

$329.99
Windham Weaponry Carbon Fiber SRC Centerfire Rifle

Windham Weaponry Carbon Fiber SRC Centerfire Rifle

Key Features
  • Smooth-Operating Gas Impingement System

  • 16" Chrome-Lined M4 Profile Barrel

  • Picatinny Railed Gas Block

  • M4 Double Heat Shield Handguards

  • Molded Carbon Fiber Composite Receiver

$699.99
Hi-Point Firearms 995TS RD Centerfire Rifle Package

Hi-Point Firearms 995TS RD Centerfire Rifle Package

Key Features
  • Fully-Adjustable Sights

  • Multiple Picatinny Rails

  • Internal Recoil Buffer

  • Last Round Lock Open

  • BSA Red Dot Scope

$329.99
Smith Wesson MP10 Camo Centerfire Rifle

Smith & Wesson M&P10 Camo Centerfire Rifle

Key Features
  • .308 Win.

  • Durable, Corrosion Resistant Finish

  • 5-Round Magazine

$1,729.99
$1,599.99
Diamondback Firearms DB15CCRFDE Centerfire Rifle

Diamondback Firearms DB15CCRFDE Centerfire Rifle

Key Features
  • 16" Free-Floating Stainless Steel Barrel

  • Forged 7075 Upper Lower Receiver

  • Quad-Rail Diamondback Handguard

  • Rogers 6-Position Adjustable Stock

  • Flat Dark Earth Finish

$649.99
Springfield M1A SOCOM 16 CQB Centerfire Rifle Package

Springfield M1A SOCOM 16 CQB Centerfire Rifle Package

Key Features
  • 5-Position Telescoping Stock

  • Adjustable Cheekpiece

  • M-Lok Rail System

  • XS Tritium Post/Adjustable Ghost Ring Sights

  • Vortex Venom Red Dot Sight Included

$2,299.99
Diamondback Firearms DB15CKMFDE Centerfire Rifle

Diamondback Firearms DB15CKMFDE Centerfire Rifle

Key Features
  • 16" Free-Floating Chrome-Lined Barrel

  • Forged 7075 Upper Lower Receiver

  • Free-Floating Keymod Rail

  • Rogers 6-Position Adjustable Stock

  • Flat Dark Earth Finish

$649.99
Bushmaster Quick Response Carbine Centerfire Rifle Package

Bushmaster Quick Response Carbine Centerfire Rifle Package

Key Features
  • 16" Superlight Contour Barrel

  • Teflon-Coated Receiver

  • 6-Position Collapsible Stock

  • Mil-Spec Single Stage Trigger

  • Includes Quick Detach Red-Dot Sight

$699.99
Daniel Defense M4 Carbine V11 Mil Spec+ Centerfire Rifle

Daniel Defense M4 Carbine V11 Mil Spec+ Centerfire Rifle

Key Features
  • Daniel Defense SLiM Rail 15.0

  • Mil Spec+ Cerakote Finish

  • Cold Hammer Forged Barrel

  • Made in the USA

$1,729.99
American Tactical Imports Omni Hybrid Maxx Limited Centerfire Rifle

American Tactical Imports Omni Hybrid Maxx Limited Centerfire ...

Key Features
  • Metal-Reinforced Polymer Receiver

  • 16" M4 Profile Phosphate-Coated Barrel

  • 6-Position Collapsible Stock

  • Picatinny Top-Rail Railed Gas Block

  • 30-Round Polymer Magazine

$599.99
$549.99
ArmaLite AR-10 Defensive Sporting Centerfire Rifle

ArmaLite AR-10 Defensive Sporting Centerfire Rifle

Key Features
  • 16" Chrome-Lined Barrel

  • 6-Position Collapsible Stock

  • Picatinny Mounting Rail

  • Birdcage-Style Flash Supressor

  • 20-Round Magpul PMag Included

$999.99
FN 15 DMR Centerfire Rifle

FN 15 DMR Centerfire Rifle

Key Features
  • 18" Match-Grade Cold-Hammer Forged Barrel

  • Midwest Industries SSM M-LOK Handguard

  • Magpul MBUS Pro Backup Iron Sights

  • Magpul STR Buttstock Magpul MOE grip

  • 30-Round Magpul PMAG Magazine

$1,799.99
DPMS Panther Arms Oracle Centerfire Rifle

DPMS Panther Arms Oracle Centerfire Rifle

Key Features
  • 16" Light Contour Barrel

  • A3 Upper Receiver w/ Picatinny Rail

  • Heat-Dissipating GlacierGuards

  • Collapsible 6-Position Pardus Stock

  • 30-Round Magazine Included

$599.99
Century Arms N-PAP Centerfire Rifle

Century Arms N-PAP Centerfire Rifle

Key Features
  • AK-47 Style Design

  • Ruggedly Dependable

  • Teak Wood Buttstock

  • Comfortable Pistol Grip

  • 30-Round Magazine Included

$669.99
Hi-Point Firearms 4595TS RD Centerfire Rifle Package

Hi-Point Firearms 4595TS RD Centerfire Rifle Package

Key Features
  • Fully-Adjustable Sights

  • Multiple Picatinny Rails

  • Internal Recoil Buffer

  • Last Round Lock Open

  • BSA Red Dot Sight

$349.99
Springfield M1A SOCOM 16 Centerfire Rifle

Springfield M1A SOCOM 16 Centerfire Rifle

Key Features
  • Tactical Rifle Power in a Small Package

  • Shorter Barrel For Maneuverability

  • Muzzle Brake Greatly Reduces Rise

  • Enlarged Ghost Ring Aperture Rear Sight

  • Scout-Style Picatinny Mount

$1,799.99
Bushmaster M4A3 Patrolman's Carbine Centerfire Rifle

Bushmaster M4A3 Patrolman's Carbine Centerfire Rifle

Key Features
  • 16" Chrome-Lined Barrel

  • Six-Position Telestock

  • Birdcage Flash Suppressor

  • Adjustable Dual Aperture M16-A2 Rear Sight

  • 30-Round Magazine

$799.99
Diamondback DB15CCB Centerfire Rifle

Diamondback DB15CCB Centerfire Rifle

Key Features
  • 16" Free-Floating Chrome-Lined Barrel

  • Forged 7075 Upper Lower Receiver

  • Quad-Rail Diamondback Handguard

  • ATI Strikeforce Stock with Buffer Tube

$579.99
Colt AR-15 A4 Lightweight LE Carbine Centerfire Rifle

Colt AR-15 A4 Lightweight LE Carbine Centerfire Rifle

Key Features
  • Direct-Impingement Gas System

  • 16.1" Barrel with 1:7" Twist Ratio

  • Corrosion-Resistant Aluminum Receiver

  • Synthetic Stock and Secure Grips

  • Bayonet Lug and Flash Hider

$929.99
Ruger SR-556 Takedown Centerfire Rifle

New! Ruger SR-556 Takedown Centerfire Rifle

Key Features
  • Two-Stage Piston-Driven Operating System

  • Simple, Tool-Less Takedown Mechanism

  • Ruger Elite 452 Two-Stage AR-Trigger

  • Threaded Barrel w/ Ruger Flash Suppressor

  • Front Rear Folding Iron Sights

$1,899.99
Hi-Point Firearms 3895TS Carbine Centerfire Rifle

Hi-Point Firearms 3895TS Carbine Centerfire Rifle

Key Features
  • Skeletonized Polymer Stock

  • Weaver-Style Mounting Rails

  • Quick On/Off Thumb Safety

  • Adjustable Ring Rear Sight

  • 100% American Made

$299.99
Ruger Mini Thirty Centerfire Rifle

Ruger Mini Thirty Centerfire Rifle

Key Features
  • Rugged Garand-Style Action

  • Heavy Hammer-Forged Barrel

  • Solid Steel Receiver Sling Studs

  • 20-Round 7.62x39mm Magazine

  • Picatinny Mounting Rail Included

$949.99
Armalite Eagle-15 ORC Centerfire Rifle

Armalite Eagle-15 ORC Centerfire Rifle

Key Features
  • Fires .223 Wylde Rounds Interchangeably

  • Picatinny Railed Receiver Gas Block

  • 6-Position Collapsible Stock

  • Birdcage-Style Flash Supressor

  • 30-Round Magpul PMag Magazine

$599.99
Windham Weaponry SRC 7.62x39 Centerfire Rifle

Windham Weaponry SRC 7.62x39 Centerfire Rifle

Key Features
  • Smooth-Operating Gas Impingement System

  • 16" Chrome-Lined M4 Profile Barrel

  • Picatinny Railed Gas Block

  • M4 Double Heat Shield Handguards

  • 30-Round 7.62x39MM Magazine

$949.99

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