Presma ambidextrous charging handle for AR-10 and LR .308 upper receivers. Replaces the standard GI charging handle with a dual-side latch that can be pulled cleanly from either side — designed for competition shooters, off-hand training, and any build where a support-hand charge saves motion.
Field-strip the upper and swap the factory charging handle for the Presma unit — no fitting required. Verify smooth travel through the receiver channel before reassembly. A drop of light oil on the rails keeps the action fast.