AR-15 Rifles
Impact Guns has been selling AR-15 rifles since 1992 and it remains America’s most popular rifle platform for good reason — modular, accurate, reliable, and backed by the largest aftermarket of any firearm in history. Whether you’re buying your first AR-15 for home defense, looking for a competition-ready build, or adding a precision rifle to your collection, we carry quality options across every price point from brands including Colt, Smith & Wesson, Ruger, Springfield, Savage, Diamondback, and POF-USA.
Read our full AR-15 Rifle Buying Guide ↓
Why the AR-15 Is America’s Most Popular Rifle
The AR-15’s popularity isn’t marketing — it’s earned. The platform is modular by design, meaning uppers, lowers, stocks, handguards, and triggers can all be swapped without gunsmithing. It’s inherently accurate, easy to maintain, low-recoil, and available at price points from under $500 to well over $3,000. The aftermarket is enormous — more optics, accessories, and parts are made for the AR-15 than any other rifle platform. For home defense, hunting, competition, or recreational shooting, there’s an AR-15 configuration that fits the job.
Caliber Guide
5.56 NATO / .223 Remington — The original and most common AR-15 caliber. Affordable, widely available, flat-shooting, and effective for home defense and varmint hunting out to 300+ yards. Most AR-15s are chambered in 5.56 NATO, which also accepts .223 Remington. Note: a rifle chambered in .223 SAAMI should not fire 5.56 NATO due to slightly higher pressure. .223 Wylde chambers handle both safely.
300 Blackout — Uses the same lower and magazines as a 5.56 AR-15, just a different upper. Purpose-built for suppressed use and short barrels while maintaining terminal effectiveness on deer-sized game. Subsonic 300 BLK through a suppressor is one of the best suppressed rifle setups available.
.22 LR (conversion or dedicated) — Drop-in conversion kits or dedicated .22 LR AR-15s (like the Hammerli Tac R1) give you the AR manual of arms at rimfire prices. Excellent for training and range use.
6.5 Grendel / 6.8 SPC — Intermediate calibers offering more energy than 5.56 at distance in an AR-15 platform. Good options for hunting deer and hogs at extended ranges.
Barrel Length Guide
16" (most common) — The minimum legal rifle barrel length without NFA registration. Balances velocity, maneuverability, and compliance. The most popular configuration and what most buyers should start with.
18" — Adds velocity and accuracy at distance. Popular for precision and varmint rifles. Slightly less maneuverable than a 16".
20" — The original military-spec barrel length. Maximum velocity from 5.56, best for long-range accuracy. Less common but preferred by some precision shooters and collectors.
Under 16" (SBR or pistol configuration) — Short-barreled rifles require NFA registration as an SBR, or the rifle must be configured as a pistol. See our AR-15 Pistols and Short Barrel Rifles categories for these options.
Price Tiers: What You Get at Each Level
Entry level ($500–$900) — Brands like Diamondback, Ruger, and Smith & Wesson offer reliable, mil-spec AR-15s at accessible prices. The S&W M&P Sport II and Ruger AR-556 are proven performers in this tier. Good for first-time AR buyers who want reliability without overspending.
Mid-range ($900–$1,500) — Better triggers, tighter tolerances, enhanced handguards, and improved fit and finish. Springfield Saint and Savage MSR offer excellent value here. This is where most serious buyers land.
Premium ($1,500+) — Hand-fitted components, match-grade barrels, premium triggers, and enhanced reliability under hard use. POF-USA, Colt, and Daniel Defense occupy this tier. Built for competition, professional use, or buyers who want the best.
Staff Picks
Smith & Wesson M&P 15 Sport III (5.56, 16") — Our top entry-level AR-15 recommendation. Reliable, well-made, and priced right. The Sport III adds an optics-ready flat top and improved trigger over its predecessors. Hard to beat for a first AR.
Savage MSR 15 Recon 2.0 (5.56, 16") — Excellent mid-range value. Savage’s quality control is outstanding and the Recon 2.0 delivers accuracy and reliability well above its price point.
Springfield Armory Saint Victor (5.56, 16") — One of the best overall AR-15s at its price point. Nickel boron BCG, mid-length gas system, free-float handguard, and Springfield’s lifetime warranty. A consistent customer favorite.
POF-USA Renegade+ (5.56, 16.5") — The premium choice. POF’s piston-driven system and match-grade barrel deliver exceptional accuracy and reliability. Built in Arizona to the highest standards.
Colt AR-15 M4 Carbine (5.56, 16") — The name that started it all. Colt’s commercial AR-15 is the civilian version of the military M4 and remains a benchmark for reliability and authenticity.
Questions about which AR-15 is right for you? We’ve been selling them since 1992 and we’re happy to help you find the right configuration. Call us at 800-917-7137 or use our live chat.