Winchester USA M855 Green Tip ammunition (brand part no. WM855500) loads a 62-grain full metal jacket bullet with a steel penetrator core, built to the same military specification issued to U.S. and NATO forces for 5.56x45mm NATO rifles. The steel core sits ahead of the lead core inside the jacket, adding meaningful penetration through barriers a standard 55-grain M193-style bullet cannot match, which is why M855 became the standard NATO service round. Packaged here as a bulk 500-round case, this loading is built for AR-15 owners who train in volume and want genuine mil-spec ballistics rather than a commercial-only loading. For 5.56 NATO shooters who want mil-spec M855 performance in bulk, this rifle ammunition from Winchester is built for exactly that.
Key Specifications
- The chambering is 5.56x45mm NATO, also safe in .223 Remington-chambered rifles.
- The bullet weighs 62 grains, the standard M855 weight.
- The bullet is a full metal jacket (FMJ) with a steel penetrator core ahead of the lead core.
- The steel core adds meaningful barrier penetration over a standard 55-grain FMJ.
- This is the M855 Green Tip loading, built to U.S. and NATO military specification.
- Case material is brass.
- Each box holds a bulk 500 rounds, packaged two boxes to a case.
- Cost runs about $0.58 per round at this listing price.
- Shipping weight for this box runs about 13.79 pounds.
Frequently Asked Questions
What is M855 Green Tip? The standard NATO service round for 5.56x45mm, identified by its green-painted tip, loaded with a steel penetrator core ahead of the lead core for added barrier penetration.
Does this run in a .223 Remington rifle? Yes, 5.56 NATO ammunition is safe to fire in rifles chambered for .223 Remington, though the reverse is not always true.
How many rounds come in this case? 500 rounds, packaged as a bulk case for high-volume shooters.
Buy the Winchester USA M855 Green Tip 5.56 NATO 62gr Ammunition
Mil-spec M855 performance in bulk quantity keeps an AR-15 fed through serious training volume without sacrificing genuine service-rifle ballistics. Order it from our Lubbock, Texas gun shop for fast shipping straight to your door.
