Here is the second version of the pistol grip stock. The first used a recoil absorbing Knoxx 870 shotgun stock. That stock incorporated 2 springs. I realized that the one in the pistol grip was going to bounce the trigger against my finger, creating a bump fire situation. This is the other Knoxx 870 stock without the recoil feature. The rifle feels very comfortable, the cheekweld is excellent with and without the glass. I modified the collapsing lever slightly so the cheekpiece could also be snapped under the stock for carry.