Rifle · 5.56x45 · 5.56 · M855 · XM193
5.56 NATO Ammo
The standard AR-15 / modern sporting rifle round.
5.56 NATO ammo price today
No live market stamp on this page yet — we don't invent a floor or a typical.
Price today · 5.56 NATO
We're bringing live 5.56 NATO price data online. When it's up, the cheapest and typical price per round land here. Set an alert below and we'll email you the moment it's live.
In stock from us
We don't have 5.56 NATO listed from our own stock at the moment. Set a price alert below and we'll email you when it's back — or when the price drops.
Shipping & the law: Ammunition can't ship everywhere. Some states and cities — including California, New York, Massachusetts, Connecticut, Illinois, and New Jersey — restrict or prohibit online 5.56 NATO sales, cap quantities, or require delivery to a licensed FFL or an age-verified adult. Always confirm your own state and local laws before ordering; checkout happens at Flip Ammo, which enforces shipping restrictions at the point of sale. Must be 21+ to purchase. State shipping note · MD / VA / D.C. (not legal advice).
Prices and availability change fast and are shown as listed by each seller at the time stamped on this page. Confirm price, stock, and your state's shipping rules on the seller's site before you buy.
Related Flip listings
We don't have 5.56 NATO listed at Flip Ammo yet. These hubs and today's deals are the honest next click — no placeholder rows.
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About 5.56 NATO
5.56 NATO is the highest-volume rifle caliber in the country and the round the AR-15 was built around. It runs at higher pressure than .223 Remington — 5.56 chambers shoot both, but .223-only chambers should stick to .223. Bulk 5.56 pricing is the rifle-market bellwether.
Common bullet weights run 55, 62, 77 grain.
Related calibers
Read next
- .223 vs. 5.56: The Difference, and Can You Mix Them?Same dimensions, different pressure. The real difference between .223 Remington and 5.56 NATO, and the one rule for what's safe to fire.
- How to Read AmmoSeek and Other Cheapest-Row ListingsThe cheapest row is not automatically the market floor. Brass vs steel, 50-round boxes vs a 1,000-round case, shipper quality, and thin listings — how to read a price board without getting fooled.
- How Ammo Prices Work: Price Per Round, ExplainedBox price hides the number that actually matters. Here's how to read ammo prices by the round, what moves them, and how to tell a real deal from a fake one.
- When Do Ammo Prices Drop? A Seasonal and Situational Buying GuideAmmo prices spike during panic buying and ahead of hunting season, then ease during calm stretches and major sales. A plain-language guide to timing purchases.
Quick answers
- Is 5.56 NATO cheaper online?
- Sometimes — after you count shipping. Online 5.56 NATO can beat a local shop on cost per round, but ammunition is heavy and some shipments add HAZMAT or freight fees. Compare landed cost, not the box sticker. This hub shows Flip Ammo stock and, when a market stamp is on the page, today's floor vs typical. It is not a multi-retailer search of every shop on the internet.
- Bulk 5.56 NATO vs a box — which is the better buy?
- A case usually lowers cost per round if you actually shoot that volume. A box is the better buy when you don't want cash sitting on a shelf, or when the load is a premium/defensive SKU you only need a little of. Shipping on a heavy case can erase the per-round savings. Work the math on CPR, then check live listings on this page.
- Is buying bulk ammo worth it?
- What is CPR (cost per round)?
- CPR is cost per round: the box or case price divided by the round count. It's the only honest way to compare a 50-round box to a 1,000-round case. Flip listings on this site rank by CPR when the round count is real — we don't guess a count from the name if it isn't explicit. https://caliberdaily.com/guides/how-ammo-prices-work
- How ammo prices work
- Does 5.56 NATO shipping include HAZMAT, and which states can receive it?
- Ammunition often ships with extra handling or HAZMAT-style fees, and some states and cities restrict or block online ammo delivery. Checkout at Flip Ammo enforces shipping rules at the point of sale — this site does not. Confirm your own state and local law before you order. This is not legal advice. https://caliberdaily.com/guides/ammo-shipping-states
- Ammo shipping by state (not legal advice)Maryland, Virginia, D.C.
- Can I mix .223 Remington and 5.56 NATO?
- They look the same but are not freely interchangeable. A 5.56 NATO chamber can fire both 5.56 and .223. A .223 Remington chamber should fire only .223 — do not run 5.56 through it. If you don't know the chamber, load .223 Remington. Check the barrel marking; don't guess.
- .223 vs 5.56