Check the listing for details. Triceratops Customs Mag Loader Compatible with Smith & Wesson M&P Shield 9mm. Condition: New. Listed at 13.99 USD. The Triceratops Customs line of speed loaders are simply the fastest and easiest to use loaders on the market. Our loaders feature a unique spring-loaded design where you simply insert the magazine and push down the plunger to insert a round. Once the round is started, simply release the plunger and push the round into the magazine. It's as simple and as fast as that. Our loaders are NOT universal. Our loaders are meticulously designed to work flawlessly with only one magazine type, so that you don't have to worry about fumbling around with a universal loader that doesn't fit right. This loader is designed exclusively for the Smith & Wesson M&P Shield 9mm Single Stack and is constructed from engineering grade plastics. Made in the U.S.A. We stand by our products 100% and have a no-nonsense satisfaction guarantee.