GGG 5.56x45 mm NATO Ball are produced according to the requirements of STANAG 4172.

In 2005 cartridges were succesfully tested in NATO European Regional Test Center (ERTC), in Pendine and GGG gained a right to mark cartridges with a NATO interchangeability sign. GP21 is a marking of standard GGG 5.56x45 mm cartridges, produced in accordance to the requirements for SS109. Cartridges are also produced according to the special requirements of the customer.

The marking of a packing is standard or could be prepared according to the requirements of the customer. Cartridges are linked, clipped or bulk packing is offered.

Products have confirmed NSN (NATO Stock Number).

NATO Design number is AC/225-130A.

	Technical data
	Caliber	5.56 mm
	Bullet	NATO Ball
	Cartridge mass	11.85 ± 0.45 g
	Bullet mass	4 ± 0.1 g
	Bullet speed	911 ± 15 m/s
	Propellant	Double based
	Primer	Boxer, non-toxic