Legacy Manufacturing introduces the Lock-n-Load 12V battery-powered grease gun,  No. L1380L. Featuring threadless quick connect barrels, and eliminates the problem of crossing threads on a grease gun barrel.  Simply slide the Lock-n-Load switch to disengage or reconnect the barrel. The L1380L includes an indicator that shows the status of the battery’s charge. Lock-n-Load also features an integral automatic bleeder valve that bleeds air every time the barrel is connected to the head to reduce air locks and priming problems.