The Bullpup Unlimited Remington 870 stock kit is a pretty awesome upgrade to your old warhorse if you are in the market for a space gun. In addition to working with most Remington 870 variants, this kit will also work with the chinese brand Hawk 982r. You want to avoid variants that have a vent-ribbed barrel because that will not fit the conversion kit. Along with being compatible with the 870’s, it will also accept magazine tube extensions, which I talk about in the video below. The $360 price tag might be a bit high for some, but combined with a used 870 or Chinese knockoff, can come in at or just above the same price range of a Kel-Tec KS7, which is the closest analog.