Home / Accessory-Magazines / HOWA AMMO BOOST MAG KIT 300WIN 5RD Sale! HOWA AMMO BOOST MAG KIT 300WIN 5RD$8900 Original price was: $8900.$8025Current price is: $8025. In stock HOWA AMMO BOOST MAG KIT 300WIN 5RD quantity Add to cart SKU: ATIK5R300 Category: Accessory-Magazines Product ID: 26864 Description Description 300 Win MagFits Howa 1500Fits Weatherby Vanguard Related products Sale! Ruger MAGAZINE AMER COMPACT 9MM 10RD $4295 Original price was: $4295.$4191Current price is: $4191. Smith and Wesson MAGAZINE M&P45 10RD FDE BASE $4200 Savage Arms MAGAZINE 60 SERIES 22LR 10SH $1900 Sale! Ruger MAGAZINE SR40/SR40C 15RD $4895 Original price was: $4895.$4610Current price is: $4610.