An extended 19-round factory magazine for the Rost Martin RM1F, in 9mm Luger, with a matching baseplate. Rost Martin is a newer American manufacturer that entered the market with a striker-fired duty pistol aimed squarely at the value end of the full-size segment.

The extended body adds capacity over the standard magazine while the sleeved baseplate keeps the transition to the frame clean, so there is no gap for debris or a pinched hand. Factory magazines from the original maker are always the safer choice on a newer platform where aftermarket support is still developing.

In stock and ready to ship straight to your door from Dawson Defense, an Arizona-owned licensed dealer.