The Ammo Boost Detachable Magazine Drop-In Kit for Howa 1500 from Legacy Sports International contains everything you need to boost your 1500's magazine capacity to 5 or 10 rounds. It also gives you the speed and convenience of a detachable box magazine for super-fast reloads. Each Ammo Boost kit consists of (1) the magazine itself and (2) a drop-in bottom metal assembly that replaces your rifle's triggerguard, hinged floorplate, and the surrounding frame. All components are constructed of reinforced, injection-molded, impact-resistant polymer. This super-tough polymer keeps weight and your out-of-pocket cost down. Installation of the Ammo Boost Detachable Magazine Drop-In Kit is fast and simple. Just remove the factory floorplate assembly and install the Legacy parts. Save the factory part in case you ever want to return the rifle to its original configuration. Gives detachable box-mag versatility to Howa 1500 rifles (and clones) 5- and 10-round capacities available Easy, drop-in installation Durable, lightweight molded-polymer construction Additional magazines also available - see separate listings Ammo Boost kits are available in both 5-Rd and 10-Rd capacities for long-action (LA) and short-action (SA) Howa 1500 rifles chambered in a variety of popular cartridges. They will also fit Interarms 1500, Mossberg 1500, Smith & Wesson 1500, and Weatherby Vanguard rifles (cat out of the bag: these rifles are all built on Howa 1500 actions!). There's no need to buy a whole new rifle when you can increase the versatility and magazine capacity of the Howa 1500 you already own with an Ammo Boost kit!