Best Websites to Buy AR-15 Rifles Online (2026 Price Comparison)

The AR-15 is the most popular rifle in America — and the most price-sensitive. The same model can vary by $200+ across different online stores, and new deals drop daily. Whether you’re buying your first budget build or a premium Daniel Defense, knowing where to shop is the difference between a great deal and getting ripped off.

We used our price comparison tool to track AR-15 prices across every major online retailer. Here are the best websites to buy AR-15 rifles online in 2026, ranked by price, selection, and reliability.

Best Websites to Buy AR-15 Rifles: Quick Picks

• Best Overall / Cheapest: Palmetto State Armory — manufactures their own ARs, unbeatable prices
• Best Selection: Brownells — massive AR-15 inventory from budget to premium
• Best for Complete Rifles: KyGunCo — competitive pricing, free shipping
• Best for Premium ARs: Primary Arms — strong on Daniel Defense, BCM, Geissele
• Best for Builders: Aero Precision (direct) — best value upper/lower receivers
• Best for In-Store Pickup: Sportsman’s Warehouse — buy online, skip shipping/FFL fees

Why AR-15 Prices Vary So Much

The AR-15 market is unique because there are hundreds of manufacturers producing rifles at every price point, from $399 budget builds to $3,000+ precision rifles. Price variance comes from several factors:

• Manufacturer pricing tiers: PSA and Anderson sell complete rifles for $400-$600. S&W and Ruger hit $600-$900. Daniel Defense, BCM, and Geissele start at $1,200+.
• MAP enforcement: Premium brands like Daniel Defense strictly enforce Minimum Advertised Price, so most stores show the same number — but cart prices can be lower.
• Bundle deals: Some stores package ARs with optics, magazines, or ammo at significant discounts.
• Seasonal sales: AR-15 prices drop 10-20% during Black Friday, 4th of July, and manufacturer promotions.

Our cheapest gun stores guide breaks down which retailers have the best pricing across all categories.

Best Online AR-15 Retailers — Detailed Reviews

1. Palmetto State Armory — Best Overall & Cheapest

PSA dominates the AR-15 market at the budget and mid-range price points. As a manufacturer and retailer, they cut out the middleman and offer prices nobody can touch. Their PA-15 line starts around $449 for a complete rifle. Their premium JAKL and Sabre lines compete with $1,000+ rifles at $700-$900.

Why PSA wins on ARs:

• Manufactures their own rifles — wholesale pricing passed to consumers
• Complete rifle kits (upper + lower) for DIY builders starting at $349
• Daily deals that frequently feature ARs at $50-$100 below normal pricing
• Wide range: .223/5.56, .300 BLK, 6.5 Grendel, .224 Valkyrie, and more
• Free shipping promotions run regularly

Watch out for: During major sales, their website gets hammered and can be slow. Shipping times can stretch to 5-7 business days during peak periods.

Shop Palmetto State Armory →

2. Brownells — Best Selection

Brownells has been the gunsmith’s supply house since 1939, and their AR-15 selection reflects that heritage. They stock complete rifles, upper receivers, lower receivers, barrels, handguards, triggers, BCGs, and every other AR-15 part imaginable — from budget brands to premium. They also manufacture their own BRN-series retro rifles and receivers.

Brownells regularly runs coupon codes (sign up for their email), and their “Bargain Bin” section has genuine deals. For builders who want to pick every component, no other retailer matches their parts selection.

Shop Brownells →

3. KyGunCo — Best for Complete Rifles

If you want a complete AR-15 at a competitive price with free shipping, KyGunCo delivers. They stock the full range — S&W M&P15 Sport III, Ruger AR-556 MPR, Springfield Saint series, Sig Sauer M400 Tread, and more. Their free shipping on orders over $25 makes the total cost extremely competitive, even when their base price is a few dollars higher than competitors.

Shop KyGunCo →

4. Primary Arms — Best for Premium ARs

Primary Arms started as an optics company but has grown into a full firearms retailer with particularly strong inventory in the mid-range to premium AR market. Daniel Defense, Bravo Company Manufacturing (BCM), Geissele, LWRC, and LaRue are all well-stocked. Their own-brand optics pair perfectly with AR builds, and bundle deals (rifle + optic) can save $100+.

5. Aero Precision (Direct) — Best for Builders

Aero Precision sells directly from their website at prices that are hard for third-party retailers to match. Their M4E1 lower receiver is arguably the best value in the AR market — improved features over mil-spec (threaded bolt catch pin, integrated trigger guard) at a reasonable price. Their complete uppers are similarly excellent value.

If you’re building an AR-15 from parts, starting with an Aero lower and upper is the sweet spot between quality and price. For a complete guide to choosing the right AR, see our AR-15 buyer’s guide.

Best AR-15 Rifles to Buy Online in 2026

Here are the most popular AR-15s with live pricing. See who has the best deal right now:

Best Budget AR-15: PSA PA-15

PSA’s entry-level complete AR-15 is the price king. M4-profile barrel, A2 front sight, standard M4 handguard or M-LOK options, Magpul furniture. Everything you need, nothing you don’t. For a first AR or a truck gun, the PA-15 at $449-$499 is hard to argue with.

Best Mid-Range: Smith & Wesson M&P15 Sport III

The Sport III improved on the already-popular Sport II with an M-LOK handguard, Crimson Trace red dot, and upgraded trigger. It’s the best-selling AR-15 in America for good reason: complete out of the box with everything you need at a fair price. MSRP is $899, but street prices are $699-$799.

Best Value: Ruger AR-556 MPR

The MPR (Multi-Purpose Rifle) packs features usually found on $1,200+ rifles into a sub-$900 package: 18″ barrel, free-float M-LOK handguard, Ruger Elite 452 trigger, rifle-length gas system. It’s noticeably more refined than most rifles at its price point and capable of excellent accuracy.

Best Premium: Daniel Defense DDM4 V7

Daniel Defense is the benchmark for premium AR-15s. The DDM4 V7 features a cold hammer-forged barrel, DD proprietary furniture, and fit/finish that budget rifles can’t match. It’s the AR that other manufacturers aspire to build. Prices are MAP-enforced around $1,799-$1,899, but it’s worth comparing because some retailers offer extras (free magazines, shipping, etc.).

Best .300 Blackout: PSA 300 BLK

.300 Blackout ARs are increasingly popular for home defense and suppressed shooting. PSA offers complete .300 BLK rifles and pistols starting around $499 — roughly half what most competitors charge for the same caliber. If you’re curious about .300 BLK without the premium price tag, PSA is the entry point.

AR-15 Ammo: Where to Buy Cheap 5.56 / .223

An AR-15 is only as useful as the ammo you can afford to shoot through it. Here are live prices on the most common AR-15 calibers:

For a deep dive on AR-15 ammo selection, check our rifle caliber guide.

Build vs. Buy: Which Saves More Money?

One of the unique advantages of the AR-15 platform is that you can build one from parts — potentially saving money while getting exactly the configuration you want. Here’s the honest breakdown:

Building saves money when:

• You’re building a mid-range to premium rifle ($800+). Buying individual quality components often costs less than a factory rifle with equivalent specs.
• You catch sales on individual parts. A discounted Aero lower + a sale-priced BCM upper can produce a $1,500-quality rifle for $1,000.
• You want specific components (barrel length, trigger, handguard) that aren’t available in any factory configuration.

Buying complete is cheaper when:

• You’re buying budget ($400-$600). PSA and others sell complete rifles for less than the cost of buying equivalent individual parts.
• You value warranty coverage. A complete rifle has one manufacturer standing behind the whole package.
• You’re new to the platform and don’t yet know what components matter to you.

For most first-time AR buyers, we recommend buying a complete rifle. Learn the platform, figure out what you’d change, then build your second AR to your exact specs. Read our complete AR-15 buyer’s guide for help choosing.

Frequently Asked Questions

What is the cheapest website to buy an AR-15?

Palmetto State Armory is consistently the cheapest for budget and mid-range AR-15s because they manufacture their own rifles. For name-brand ARs (S&W, Ruger, Springfield), KyGunCo and GrabAGun compete for the lowest price. Use our price comparison tool to check current pricing on any specific model.

Are AR-15s legal to buy online?

Yes, in states where AR-15s are legal to own. The process is identical to buying any other rifle online: purchase, ship to FFL, complete background check, take home. Some states (California, New York, Massachusetts, Connecticut, New Jersey, etc.) have “assault weapon” restrictions that affect which configurations are legal. Many retailers sell state-compliant versions. Check your state’s gun laws before ordering.

What’s the best AR-15 under $500?

The PSA PA-15 is the best AR-15 under $500, hands down. Reliable, functional, and backed by PSA’s lifetime warranty. The Anderson AM-15 is another option at a similar price point. At this budget, you’re getting a mil-spec rifle that works — just don’t expect premium features like free-float handguards or match triggers.

What’s the best AR-15 under $1,000?

The Ruger AR-556 MPR ($800-$900) and Smith & Wesson M&P15 Sport III ($700-$800) are the two best options. The MPR offers more features (free-float handguard, upgraded trigger, 18″ barrel), while the Sport III comes with a red dot sight included. Both are excellent values. The Springfield Saint Victor ($850-$950) is another strong contender with a very good trigger.

Compare AR-15 Prices Now

Search any AR-15 model, upper, lower, or accessory below to see live pricing from 100+ retailers:

For our complete retailer rankings, see the 12 Best Online Gun Stores and cheapest online gun stores.

Today’s Best AR-15 Deals

Our system scans hundreds of retailers daily. Here are the biggest AR-15 discounts right now: