100% dont bother with the gas ram been there done it . If your gun is shooting ok at full power just learn to shoot it . they are a nightmare to shoot but with practice you can shoot them accurately . My spring broke so I fitted a gas ram , you have to file something down a bit cannot remember what , I was told the gas rams fail in 6 mounth by a big air gun shop in london , in 6 mounths the ram failed in my bsa. while working the ram shot very well 11.8 on the dot , it started losing power as it started to leak . the leak was visible with oil coming out . I read someone eles this problem .So