Luckily the H&R Pump is based off of the the Remington 870. Just about everything that can go on a 870 can be put on the Pardner pump with exceptions to the barrel due to the design of the barrel clamp. If you want to change the look and the feel of the Pardner pump I recommend the Phoenix Technologies Remington 870 12 Gauge Six Position Field Stock. drastically changes the feel of the shotgun and gives a much more tactical look. Pic at link.