AR-15 Rifles
The AR-15 is the most popular rifle in America, and for good reason — it’s modular, accurate, reliable, and available in a range of calibers and configurations that covers everything from varmint hunting to home defense. Impact Guns carries AR-15 rifles from Colt, Daniel Defense, Ruger, Springfield Armory, FN, and more in standard 5.56 NATO, .300 Blackout, .224 Valkyrie, 6.5 Grendel, and other configurations. Whether you’re looking for a budget AR-15 under $500, a complete patrol-ready rifle, or a purpose-built competition upper, this is the place to start.
Read our full AR-15 Buying Guide ↓
Budget AR-15s: Quality Under $500
The under-$500 AR-15 market has matured significantly — modern manufacturing has brought genuine quality to the accessible price tier. For first-time buyers or shooters who want a reliable range rifle without premium investment, the sub-$500 segment now offers real options with mil-spec bolt carrier groups, chrome-lined or nitride-treated barrels, and the fundamental reliability of rifles costing twice as much. Browse our dedicated Budget AR-15 page for the full selection of value-tier rifles and pistols. The three most impactful upgrades on a budget AR — a drop-in trigger, free-float handguard, and entry optic — are covered on our AR-15 triggers page.
Caliber Selection: 5.56, .300 Blackout, and Beyond
5.56 NATO is the default AR-15 caliber — the most affordable, most widely available centerfire rifle cartridge in America, and the correct starting choice for most buyers. .300 Blackout is the premier suppressor and home defense caliber for the AR platform, offering subsonic performance through a quality can that 5.56 can’t match; browse our .300 Blackout ammo page for load options. 6.5 Grendel and .224 Valkyrie extend the AR-15’s effective range well beyond what 5.56 achieves. .22 LR conversion uppers and dedicated AR-pattern .22 LR rifles like the S&W M&P 15-22 provide affordable training volume. For ammunition see our .223/5.56 ammo page.
Top AR-15 Brands: From Budget to Premium
The AR-15 market spans from value-tier manufacturers to custom-shop quality. At the premium end, Daniel Defense, Colt, and FN America produce some of the most specified AR-15s available — the FN15 series is built on the same manufacturing platform as FN’s military contract production. Springfield Armory’s SAINT series covers mid-tier buyers with optics packages and configuration variety. Ruger’s AR-556 and Harrier series provide reliable American-made performance at accessible prices. For buyers who want the broadest selection at the best prices, comparing across brands at Impact Guns is the most efficient path to the right configuration.
AR-15 Pistols: Compact Format, No NFA
AR-15 pistols — AR-pattern firearms with barrels under 16” classified as pistols under federal law — provide a compact platform without SBR paperwork or tax stamp. With 10.5”, 7.5”, or shorter barrels in 5.56 and .300 Blackout, AR pistols are well-suited for home defense, vehicle storage, and range use in a more maneuverable format than full-length carbines. The .300 Blackout caliber is particularly well-matched to AR pistol barrel lengths — it was designed for short barrels and retains terminal performance where 5.56 loses velocity rapidly. For buyers who want an even shorter platform with NFA registration, see our short barrel rifles page.
Optics and Sights for AR-15s
The AR-15’s flat top Picatinny rail makes it the most optics-compatible rifle platform available. Red dots are the most common AR optic — fast target acquisition at close-to-medium ranges, co-witnessed with backup iron sights for reliability. LPVOs (low-power variable optics) in 1-4x, 1-6x, and 1-8x configurations provide red-dot-fast performance at close range with magnification for precision at distance. Fixed-power scopes in 4x suit dedicated precision use. For budget buyers, Vortex Crossfire II and Burris FastFire provide reliable glass without premium investment. Browse our scopes page for the full optics selection.
Complete Rifles vs. Building Your Own
Complete AR-15 rifles offer the fastest path to a reliable, ready-to-shoot platform — a single purchase, a single warranty, and a manufacturer-tested configuration. Building from a stripped or complete lower provides maximum customization and often better per-component value for experienced builders, but requires knowledge of the platform and a parts selection process that can overwhelm new buyers. For most first-time AR owners, a complete rifle from a reputable manufacturer is the correct starting point. For shooters who already own a complete lower and want to add a caliber, see our uppers and complete upper selection. For parts and accessories see our AR triggers and parts pages.