If someone can post a picture of one with the pump handle fully extended and provide me with the outer diameters of the barrel and pump tube, I can make one. I've already done a very similar build for stock barrel length 13XX, so I could probably make this a reality in a month or two.
Quote from: Geo Schoonmaker on February 14, 2019, 10:34:53 PMIf someone can post a picture of one with the pump handle fully extended and provide me with the outer diameters of the barrel and pump tube, I can make one. I've already done a very similar build for stock barrel length 13XX, so I could probably make this a reality in a month or two.Barrel...8.95mm. Sights are 9.5mm set back.Tube...22.45mm. 6.3mm setback gets into the pumparm.
Quote from: Xptical on February 15, 2019, 09:47:37 AMQuote from: Geo Schoonmaker on February 14, 2019, 10:34:53 PMIf someone can post a picture of one with the pump handle fully extended and provide me with the outer diameters of the barrel and pump tube, I can make one. I've already done a very similar build for stock barrel length 13XX, so I could probably make this a reality in a month or two.Barrel...8.95mm. Sights are 9.5mm set back.Tube...22.45mm. 6.3mm setback gets into the pumparm.Thanks! That gives me something good to work with. From looking at pictures, there appears to be 2 roll pins near the end of the pump tube. Do both protrude from the tube like the one in the 13XX does?
Quote from: Geo Schoonmaker on February 15, 2019, 10:56:13 AMQuote from: Xptical on February 15, 2019, 09:47:37 AMQuote from: Geo Schoonmaker on February 14, 2019, 10:34:53 PMIf someone can post a picture of one with the pump handle fully extended and provide me with the outer diameters of the barrel and pump tube, I can make one. I've already done a very similar build for stock barrel length 13XX, so I could probably make this a reality in a month or two.Barrel...8.95mm. Sights are 9.5mm set back.Tube...22.45mm. 6.3mm setback gets into the pumparm.Thanks! That gives me something good to work with. From looking at pictures, there appears to be 2 roll pins near the end of the pump tube. Do both protrude from the tube like the one in the 13XX does?4.6mm rollpin is centered at 8.7mm back and 8.3mm down.4.6mm rollpin is centered 21mm back and 16mm down.Honestly, there isn't much meat to work with.Maybe something slit at top for the front sight and slit on bottom for the pump arm.
Quote from: Xptical on February 15, 2019, 11:16:01 AMQuote from: Geo Schoonmaker on February 15, 2019, 10:56:13 AMQuote from: Xptical on February 15, 2019, 09:47:37 AMQuote from: Geo Schoonmaker on February 14, 2019, 10:34:53 PMIf someone can post a picture of one with the pump handle fully extended and provide me with the outer diameters of the barrel and pump tube, I can make one. I've already done a very similar build for stock barrel length 13XX, so I could probably make this a reality in a month or two.Barrel...8.95mm. Sights are 9.5mm set back.Tube...22.45mm. 6.3mm setback gets into the pumparm.Thanks! That gives me something good to work with. From looking at pictures, there appears to be 2 roll pins near the end of the pump tube. Do both protrude from the tube like the one in the 13XX does?4.6mm rollpin is centered at 8.7mm back and 8.3mm down.4.6mm rollpin is centered 21mm back and 16mm down.Honestly, there isn't much meat to work with.Maybe something slit at top for the front sight and slit on bottom for the pump arm.You are right, not much meat to work with, but with those measurements, there's gonna be enough! I work a mindless job 3 days a week, so I spend my shifts working out the details on projects like these while I perform my boring tasks. Many thanks for the measurements, there's just two more that I need - how tall is the solder joint between the barrel and pump tube and the width of the front sight?The design I have forming in my mind will allow the use of the front sight and should require no mods to the rifle itself. Since the rifle is fairly substantial, I will have to combine 3d printing with a carbon fiber tube or anodized aluminum body for best results.