Caliburn Type-m

thingiverse

Human: Update: November 2, 2018 I created this because I wanted a prime that was shorter than the original Caliburn. After some effort, I managed to reduce it by one and a quarter inches in total. The blaster itself is shortened by approximately five and a quarter inches. Part List: PlungerTubeButt-m: This is a printed version of the shortened Plunger Tube End if you prefer not to cut any polycarb or acrylic tube. SearSpacer6p60x9: This spacer secures both ends of the Sear part with screws. I couldn't find an available nylon spacer, so use M3x6 screws instead. RailgasmForeGrip-m: The original Railgasm Grip shortened. It's been tested and requires manual drilling for priming bars. Back_Butt-m: The spring post was shortened to compensate for the reduced length of the plunger tube at its back end. RailgasmForeGrip-m-V2: A cleaner version of the grip with screw holes that might not line up with the original. It's untested, so proceed with caution. PlungerHead38mm: Use this part with your 38mm outer diameter Plunger Tube. PlungerHead40mm: This part is designed for use with a 40mm outer diameter Plunger Tube. Ram2o-m: The added base compensates for the shorter spring. Depending on your preferred seal, you might need to fit multiple o-rings. It fits up to four o-rings in total. AyyLMAOForeGrip-m: A shorter version of the Grip picatinny mount that's only compatible with RailgasmForeGrip-m, not V2. Sorry RevJames, it won't work for you. StockKiri-m: This all started with a shortened StockKiri. It's designed to work seamlessly with K25 Spring and has been tested with a K25 equivalent spring (China Spring) that's 6.5 inches long. However, I haven't tested it with the McMaster K25 spring yet, so be cautious when using it. Important Footnote: My measurements indicate an average speed of approximately 125FPS (K25). Some readings are slightly higher, reaching near 200FPS in some cases, but most fall within a range of 120-130FPS.