Shop By Category
Find exactly what you need from our curated firearms and accessories catalog
Handguns
Semi-auto pistols, revolvers, compact carry weapons from Glock, Sig Sauer, and more
Rifles
AR-15 platforms, bolt-action rifles, and tactical long guns for every application
Ammunition
Factory-fresh rifle, pistol, shotgun, and rimfire ammo from top manufacturers
Shotguns
Pump-action, semi-auto, and tactical shotguns for defense and sporting use
Accessories
Holsters, optics, sights, grips, magazines, and upgrade parts for your firearms
FRT Triggers
Forced Reset Triggers and premium trigger upgrades for enhanced performance
Best Sellers
Our most popular firearms and accessories, hand-picked by our team
Handguns
Handguns
Glock Switches
Real Flatback/Invincible Glock Switch – Semi/Full Auto Modes
Handguns
Buy firearms online from Thornhill Tactical Supply, a fully licensed FFL firearms dealer serving customers across the United States. We carry a comprehensive selection of handguns, rifles, shotguns, and ammunition from leading manufacturers including Glock, Smith & Wesson, Sig Sauer, Ruger, and many more. Whether you are searching for a reliable concealed carry pistol, a precision bolt-action rifle, or bulk ammunition for range days, our online gun store has you covered. Every firearm ships directly to your local FFL for a seamless, legal transfer process.
Why Choose Thornhill Tactical
Six reasons our customers keep coming back for their firearms needs
FFL Licensed & Insured
Thornhill Tactical Supply holds a valid Federal Firearms License, ensuring every transaction meets ATF compliance standards. We maintain full insurance coverage on all inventory and shipments, giving you peace of mind that your purchase is protected from warehouse to doorstep. Our licensing is regularly audited and updated to reflect current federal and state regulations.
Fast & Discreet Shipping
Orders placed before 2 PM EST ship the same business day in plain, unmarked packaging. We work with trusted carriers experienced in firearms logistics to ensure your order arrives safely at your designated FFL dealer. Tracking information is provided within hours of dispatch, and our average delivery time to most US addresses is just 2-3 business days.
Quality Inspected
Every firearm in our catalog undergoes a thorough multi-point inspection before it leaves our facility. We verify function, finish, and accuracy against manufacturer specifications. Our trained armorers check slides, barrels, trigger mechanisms, and safety features to ensure you receive a product that performs exactly as intended right out of the box.
Competitive Pricing
We negotiate directly with manufacturers and authorized distributors to bring you pricing that beats most local gun shops and online competitors. Our low overhead model means savings get passed directly to you. We also run regular promotions and bundle deals on popular items like Glock handguns, AR-15 accessories, and bulk ammunition packages.
Expert Customer Support
Our team includes experienced firearms enthusiasts and certified armorers who can answer your questions about product specifications, compatibility, and recommendations. Whether you need help choosing the right caliber for home defense or advice on which optic pairs best with your rifle, our support team is available via email and phone to assist you promptly.
Huge Selection
With over 500 products spanning handguns, rifles, shotguns, ammunition, optics, holsters, triggers, and tactical accessories, Thornhill Tactical Supply is your one-stop shop. We stock trusted names like Glock, Sig Sauer, Smith & Wesson, Ruger, Federal, Hornady, and dozens more. New inventory arrives weekly, so there is always something fresh in our catalog.
New Arrivals
The latest additions to our firearms and accessories inventory
Handguns
Handguns
Brands We Carry
Authorized dealer for America’s most trusted firearms manufacturers
See Our Products in Action
Watch reviews, demonstrations, and range tests from our team
Product reviews and range demonstrations coming soon.
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Frequently Asked Questions
Everything you need to know about buying firearms online
Buy Firearms Online from Thornhill Tactical Supply
Thornhill Tactical Supply is a fully licensed Federal Firearms License dealer based in the United States, offering a curated selection of handguns, rifles, shotguns, ammunition, and tactical accessories. We built this business on a simple promise: deliver quality firearms at fair prices with honest, knowledgeable service. Our catalog features over 500 products from manufacturers that have earned their reputation on the range and in the field, including Glock, Smith & Wesson, Sig Sauer, Ruger, Springfield Armory, and many more.
Handguns, Rifles & Shotguns for Every Purpose
Whether you are a first-time buyer looking for a reliable home defense handgun, an experienced shooter building out an AR-15 platform, or a hunter seeking a precision bolt-action rifle, our inventory covers the spectrum. Our handgun selection spans compact concealed carry options like the Glock 43X and Sig P365, through full-size duty pistols like the Glock 17 and Smith & Wesson M&P series. On the rifle side, we stock everything from budget-friendly AR-15 builds to premium bolt-action platforms in popular calibers like .308 Winchester and 6.5 Creedmoor. Our shotgun lineup includes tactical, sporting, and home defense models from proven manufacturers.
Ammunition & Accessories
A firearm is only as good as the ammunition you feed it, which is why we stock factory-fresh rounds from Federal, Hornady, Winchester, Remington, and other trusted names. From 9mm and .45 ACP for your pistol to .223 Remington and .308 Winchester for your rifle, we maintain deep inventory on the calibers that matter. Our accessories department rounds out your purchase with holsters, red dot optics, magnified scopes, weapon lights, magazines, cleaning kits, and upgrade parts. Thornhill Tactical Supply is your single destination for everything firearms, delivered fast, priced right, and backed by people who know the products inside and out.