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Semi Auto Rifles

Order semi auto rifles online from trusted brands like Tactical Solutions, Franklin Armory, Grand Power, Auto-Ordnance, and B&T. Santan Reptiles & Firearms provides reliable, fast-shooting semi auto rifles built for sport shooters, hunters, home defenders, and tactical enthusiasts who want quick follow-up shots and dependable performance. From rimfire plinkers to centerfire hunting rifles and modern sporting platforms, we stock a wide range of calibers and configurations to fit every shooter. Stock up on rifle magazines to keep your rifle ready, then dial in your setup with scopes, sights & optics for accurate aiming and gun parts to fine-tune your build. Round out your kit with AR rifles, AK rifles, bolt action rifles, lever action rifles, and rifle ammunition from our full inventory.

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$200.00$14,186.00
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Santan Reptiles and Firearms
AUTO-ORDNANCE – THOMPSON M1 CARBINE 30CAL PARK/WD 15RD
$1,120.00
AUTO-ORDNANCE - THOMPSON M1 CARBINE 30CAL PARK/WD 15RD
AUTO-ORDNANCE – THOMPSON M1 CARBINE 30CAL PKZ/WD 10RD
$1,120.00
AUTO-ORDNANCE - THOMPSON M1 CARBINE 30CAL PKZ/WD 10RD
AUTO-ORDNANCE – THOMPSON THOMPSON 1927A1 DLX 45CA 100RD
$2,960.00
AUTO-ORDNANCE - THOMPSON THOMPSON 1927A1 DLX 45CA 100RD
AUTO-ORDNANCE – THOMPSON THOMPSON 1927A1 DLX 45CAL CCH
$2,744.00
AUTO-ORDNANCE - THOMPSON THOMPSON 1927A1 DLX 45CAL CCH
AUTO-ORDNANCE – THOMPSON THOMPSON M1 ARMY 250TH 45CAL
$2,727.00
AUTO-ORDNANCE - THOMPSON THOMPSON M1 ARMY 250TH 45CAL
AUTO-ORDNANCE – THOMPSON TRUMP FIGHT 1927A1 45ACP BLEM#
$2,564.00
AUTO-ORDNANCE - THOMPSON TRUMP FIGHT 1927A1 45ACP BLEM#
AUTO-ORDNANCE 30M1 CARBINE IWO – JIMA 80TH ANN 10RD MAG
$1,978.00
AUTO-ORDNANCE 30M1 CARBINE IWO - JIMA 80TH ANN 10RD MAG

Semi Auto Rifles Buying Guide

Browse semi auto rifles online by comparing models, checking current availability, and reviewing specifications such as caliber, capacity, barrel length, and sight configuration. Selecting the right self-loading rifle depends on your intended application, preferred operating system, and the cartridge that matches your shooting goals.

Use these pointers to dial in your selection:

  • Look at the rugged simplicity of the long-stroke piston platform, since AK rifles chambered in 7.62x39mm and 5.45x39mm deliver reliable performance with minimal maintenance across hard use.
  • Compare self-loading designs against bolt action rifles before settling on a platform, since manually-cycled bolt guns trade rate of fire for inherent accuracy and simpler maintenance.
  • Pick classic manually-cycled platforms for hunting traditions, since lever action rifles offer fast follow-up shots and brush-friendly chamberings that complement a semi-auto in your collection.
  • Pair your semi auto rifle with quality gun scopes for precision and long-range shooting, since LPVOs and traditional variable scopes give modern sporting rifles the magnification needed for varmint hunting and distance work.
  • Add a sight magnifier behind your red dot for extended target identification, since flip-to-side 3x and 5x magnifiers transform a close-range red dot into a versatile mid-range optic without sacrificing fast acquisition.
  • Pair your semi auto rifle with a spotting scope for confirming hits at distance, since 20-60x60mm and 25-75x85mm spotters let shooters and hunters score targets and evaluate game at ranges where binoculars fall short.

Local And Compliance Notes

Buy semi auto rifles online or visit the gun shop in Maricopa, Arizona to shoulder different platforms, compare handguard lengths, and check trigger feel before committing. Santan Reptiles & Firearms serves customers in the nearby cities of Casa Grande and Chandler, stocking modern sporting rifles, traditional self-loading hunting rifles, and rimfire trainers for shooters across experience levels.

Federal law requires semi auto rifle buyers to be at least 18 years old when purchasing a long gun from a licensed dealer, and Arizona requires the standard NICS background check at the point of sale through any FFL transfer. Buyers must complete ATF Form 4473 at the time of transfer, and any disqualifying factors under federal or state law will block the sale. Arizona does not impose a state-level assault weapons ban, magazine capacity limit, or registration requirement for semi-automatic rifles.

Transport semi auto rifles unloaded in a case during travel, with magazines stored separately when practical, and review Arizona Game and Fish Department rules for caliber, magazine capacity, and projectile restrictions during specific hunting seasons. Store self-loading rifles in a secure cabinet or safe when not in use, and contact the shop with questions about availability, transfers from out-of-state dealers, or special-order configurations.

Frequently Asked Questions About Semi Auto Rifles

1. How does a semi auto rifle cycle?

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A semi auto rifle uses energy from the fired cartridge, either gas pressure or recoil, to cycle the bolt rearward, eject the spent case, and chamber a fresh round from the magazine. The shooter must release and re-press the trigger for each subsequent shot.

2. What is the difference between direct impingement and piston-driven systems?

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Direct impingement routes propellant gas through a tube directly into the bolt carrier, keeping the rifle lighter at the cost of carbon and heat in the action. Piston-driven systems use a separate operating rod to cycle the action, running cooler and cleaner with a slightly different recoil impulse.

3. Are semi auto rifles legal for hunting in Arizona?

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Arizona allows semi-automatic rifles for big game hunting under current Arizona Game and Fish Department regulations, with specific magazine capacity and caliber rules that vary by species and season. Always check the current hunting regulations before heading afield.

4. What is the typical service life of a semi auto rifle?

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Quality semi-automatic rifle barrels often last 10,000 to 20,000 rounds with proper maintenance, while bolt carrier groups, springs, and gas system components benefit from periodic inspection and replacement. Service life depends heavily on caliber, ammunition quality, and cleaning practices.

5. How often should I clean a semi auto rifle?

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Most semi-automatic rifles benefit from a thorough cleaning after each range session, with particular attention to the bolt carrier group, chamber, and gas system. Carbon buildup in these areas is the most common cause of reliability issues over time.

6. What is the difference between an AR-15 and an AR-10?

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AR-15 platform rifles are sized for intermediate cartridges like 5.56 NATO and .300 Blackout. AR-10 platform rifles are larger, heavier, and chambered for full-power cartridges like .308 Winchester and 6.5 Creedmoor, requiring a larger receiver, bolt, and magazine.

7. Can I use steel-cased ammunition in a semi auto rifle?

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Many semi-automatic rifles can run steel-cased ammunition, though some manufacturers note increased extractor wear and harder primers that may affect reliability. Always consult your owner’s manual and consider the long-term wear implications before extended use.

8. Do I need a permit to buy a semi auto rifle in Arizona?

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Arizona does not require a separate purchase permit for semi-automatic rifles, but every retail rifle sale must go through a licensed dealer with a NICS background check. Buyers must be at least 18 years old when purchasing a rifle from a dealer.