At the moment Grenade’s pre-workout .50 Caliber can be found in a number of sizes, most of them being in the UK. We have the original 50 serving box size as well as the smaller 25 serving bag, and the 25 stick pack box, all available in two flavors berry blast and lemon raid. Here in the US the box carries a little more with 64 servings, coming in two different tastes KO punch and orange onslaught. Grenade are of course showing more appreciation for their local market, although that has now somewhat changed. The brand have put together and released a second volume for their American fans, with .50 Caliber’s 5th size, a 10 serving tub. In total the new volume weighs in at 59g, a solid introductory option for fans who have yet to try Grenade’s pre-workout. Compared to the regular 64 serving, the 10 is of course not as cost effective running you more than 25% extra per serving. Fortunately future .50 Caliber fans will have the same flavors to choose from if they do decide to stick with the supplement after the trial run, as both KO punch and orange onslaught are on the 10 servings menu.