Shooters World AR Plus Smokeless Powder 1 Lb canisters. AR Plus provides additional cleanliness and flash suppression for AR platforms chambered in popular bottlenecked cartridges. As with our other spherical propellants, AR-Plus flows like water through a volumetric charger. Loaders will see no more than 1/10th of a grain of variation in charge weight from a powder drop. This has been tested in Dillon, RCBS, Lee, Hornady, Hollywood, and Lyman chargers.