Airsoft grenade launcher kit -Short version

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This is an Airsoft Grenade Launcher Kit. This is the short version of this model : [creation airsoft-grenade-launcher-kit-airsoftsima] It is a fully functional model, designed for 3d printing and it uses standard airsoft grenades. It is very reliable because it has a simple push button as a trigger and a functional cross-bolt safety. -The launcher can be attached to RIS rails. -Barrel length is 104 mm. -The distance from the breech to the back of the barrel when fully opened is 94 mm. - Fits an 107mm long ASG grenade, but it must be inserted at an angle. If you plan using long airsoft grenades, this model is not for you, please check my other grenade launcher designs : [creation airsoft-m320-grenade-launcher] [creation gp-25-airsoft-grenade-launcher] In addition to the 3d printed components, you'll need to source some other parts as follows (for reference, you can see the extra parts in one of the images) : -3x M6 x 35mm socket head bolts -1x M4 x 30mm socket head bolt -1x M3 x 25mm socket head bolt -2x M6 nuts -1x M4 nut -1x 5mm diameter x 10mm long compression spring (you can use a pen spring and cut it to size) -1x 9mm diameter x 30mm long compression spring (you may get away with slightly different dimensions for the springs) -Super glue Update I adjusted some tolerances, optimized the holes to improve the printability.