Store Hours

Mon-Fri: 10am-8pm
Sat-Sun: 9am*-7pm

*First hour of weekend range time (9am-10am) is reserved for members only. Retail store is open to everyone during these hours.

About The Heckler & Koch HK-33 Machinegun

The HK-33 was introduced in the 1960's as a refinement of the G-3 battle rifle. It is different from the G-3 and MP-5 in that it uses the 5.56x45mm NATO rifle bullet instead of the MP-5's 9mm Luger handgun round and the G-3's 7.62x51 NATO.

The HK-33 does not utilize the common gas method but by a delayed-blowback mechanism that makes use of rollers that recess into the receiver; the breech is thus never fully locked in the strict sense of the word. The rollers hold the breech closed until the pressure drops down to a safe level, then the block moves back and the round is ejected and subsequently a new round is pushed into the chamber.

Additional information on the HK-33 can be found at Modern Firearms HK-33.