Remmington Lenth of Pull Spacer Kit VersaMax Synthetic Stock For 12-gauge synthetic stocks. Each kit includes two 1/4-inch lop spacers, one 1/2-inch lop spacer and corresponding screws for easy adjustment up to one additional inch Whether you have a Youth shotgun which can grow with your child or you just require a longer lop Now you can quickly adjust the Stock length and easily accommodate any shooter