Global Ordnance M193 5.56x45mm NATO ammunition (brand part no. GO850003223346) loads the classic 55-grain full metal jacket bullet to the original military M193 specification, meeting both NATO STANAG 4172 and U.S. military MIL-C-9963F standards. Global Ordnance builds this load factory-new on boxer-primed, reloadable brass with a non-magnetic lead-core bullet, giving AR-platform shooters genuine mil-spec ballistics rather than a steel-cased economy alternative. Among rifle ammunition, this is a dependable, no-nonsense choice for shooters who want true M193 performance at the range.

Key Specifications

• The chambering is 5.56x45mm NATO, loaded to full NATO pressure specification.
• The bullet is a 55-grain full metal jacket with a lead core and copper jacket, non-magnetic.
• The muzzle velocity is 3,162 fps, at a consistent 52,300 psi across a wide temperature range.
• Built to the M193 specification, meeting NATO STANAG 4172 and MIL-C-9963F standards.
• The cases are factory-new brass, boxer-primed and reloadable.
• Each box holds 20 rounds.

Frequently Asked Questions

Is this safe to shoot in a .223 Remington rifle? This is a full-pressure 5.56x45mm NATO load. It is safe in rifles chambered for 5.56 NATO or .223 Wylde, but not recommended in rifles chambered specifically for .223 Remington, which are built for lower pressure.

What does the M193 designation mean? M193 is the original US military specification for the 55-grain 5.56x45mm FMJ loading that most AR-15 rifles were designed and sighted around.

Is this ammunition reloadable? Yes, it is factory-new, brass-cased, and boxer-primed, unlike steel-cased Berdan-primed alternatives.

Buy Global Ordnance M193 5.56x45mm NATO

An AR-platform rifle earns its keep on the range, and mil-spec M193 exists to keep it fed reliably, magazine after magazine. Order from our Lubbock, Texas gun shop and it ships fast to your door.