Caliber Conversion Kits

Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further.  Our kit provides all necessary components (aside from suppressor) to do so. With a DTAC Cage and SD guard...

MM HK UMP, USC Conversion Kit - 9mm This 9mm conversion kit is designed for USC-to-UMP builds and allows existing .45 ACP conversions to be changed over to 9mm with a simple, drop-in parts swap. All components install in minutes and are built to...

Heckler and Koch HK G3, HK91 .22LR Caliber Conversion Kit - USED SOLD AS IS. NO RETURNS. Convert any HK91 or  HK G3 rifle to cycle .22LR ammunition with this genuine HK caliber conversion kit. This kit is intended for marksmanship training and...