This custom pistol trigger is machined from 360 brass. It's ultra-thin, extra-wide and lowers pull by around 4 oz. It fits perfectly to eliminate unnecessary wobble, no shims or spring washers should be used. It has just enough free-play to allow use of the lightest sear springs without binding or failing to return all the way up for reliable sear engagement. The thin blade leaves a lot more room inside the trigger guard which greatly improves comfort, especially for adult-sized fingers. Unnecessary forward movement is completely eliminated by the trigger design. No other trigger in the industry comes even close to this level of comfort and performance. It's extremely durable and will easily last the life of your gun. It works great with a standard sear but for the best performance our custom Magnum Sear should be used. It fits with the standard plastic factory though we recommend our custom brass safety for the best fit and durability. It fits current and older Crosman models 1377C, 1322C, PC77, P1377, P1322, 2289G Backpacker, 2240, 2250, 2300T, 2300S, 2300KT, 2400KT, 1300KT, SSP250 and may fit other models that use the same type of trigger frame. It does not work with the simulated two-stage groups on 1701P, 1720T and Marauder Pistol. If your model isn't mentioned contact us to find out if it will fit your gun.