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 vs typical
As of Sep 4, 7:14 AM ET — when to buy is the snapshot below, not a forecast. Latest dated snapshot (2026-09-04)
market floor
When to buy
The cheapest listings are running close to the typical price. No standout deals on the board right now.
Snapshot of listings as of Sep 4, 7:14 AM ET — not a price forecast.
In stock from us
1 listing5.56 NATO First Breach 55gr FMJ 1000rd bulk
Checked
The market floor above is the cheapest listing we counted across sellers. Prices in this list are our Flip Ammo listings — they can sit above that floor.
Caliber Daily may earn a commission when you buy through Flip Ammo links. Prices are as listed by the seller.
More 5.56 NATO at Flip Ammo
7 listings · Catalog as of Sep 4, 9:03 AM ETPMC 5.56x45mm NATO 62 gr Light Armor Piercing (LAP) 20RD BOX
WINCHESTER 5.56MM (M855) 62GR GREEN TIP LAP BRASS CASED 20RD BOX
Frontier Cartridge FR310 Rifle 5.56x45mm NATO 68 gr Boat Tail Hollow Point Match 20 Bx/ 25 Cs
$15.11View at Flip Ammo5.56x45mm NATO - HORNADY BLACK 5.56X45MM NATO 75GR INTERLOCK SBR LOAD - 20 ROUND BOX
FEDERAL TACTICAL BONDED 5.56X45MM 64GR SOFT POINT BRASS CASED 30RD BOX ON STRIPPER CLIPS
WINCHESTER 5.56X45MM M193 (LC) 55GR FMJ BRASS CASED 200RD BOX
PMC 5.56 (M193) 55GR FMJ 840RD CAN ON BANDOLIERS (140RDX6)
Listings from the Flip Ammo catalog, shown as coverage — compare against the market read above and confirm the current price at Flip Ammo before you buy. Caliber Daily may earn a commission when you buy through Flip Ammo links. Prices are as listed by the seller.
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).
Dated snapshots
Each day is its own URL and does not overwrite. We only list days we actually captured — no back-filled prices.
- Latest 2026-09-04
- 2026-09-04
- 2026-09-03
- 2026-08-29
- 2026-08-26
- 2026-08-23
- 2026-08-21
- 2026-08-20
- 2026-08-19
- 2026-08-18
Live hub: /5-56-ammo · Today's deals
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.
More Flip calibers
More Flip Ammo stock lives on these hubs and on today's deals — only real listings, no placeholders.
Price alert
We'll watch 5.56 NATO so you don't.
Get an email the moment 5.56 NATO drops to your target price per round. No account — just an email.
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