Bolter Conversion for M4 Airsoft

thingiverse

Bolter Conversion for M4 Airsoft Gun ------------------------------------------------- UPDATES: August 2017 Fixes: July 2017 Two parts have been updated: Boltergrip3.stl and BolterOuterBarrel4.stl This now allows the handguard to lock in the outer barrel. -------------------------------------------------- The donor used for this conversion was a G&G Raider Polymer-bodied airsoft M4. The inner barrel, front iron sight, metal reinforcing bar, and bushing from inside the rail system were removed. If you choose assembly 1 or 2, also remove the stock and the stock protrusion from the receiver sawn off. The charging handle was also removed. (Included pictures show the result.) There are three ways to use this kit: 1: Front-wired using all parts with a QD attachment at the stock end. 2: Front-wired using all parts without a QD attachment at the stock end. 3: Rear Wired (in which case do not use the Stock End parts). Using other models of airsoft guns. Some modification of these parts may be required as this was custom-made for a G&G Combat Machine Raider that was front-wired. The QD used for this conversion was from: http://www.ant-supplies.uk/gun-sling-fittings/flush-fit-gun-sling-swivels.html (picture attached) Parts List Bolter Front Sight Bolter Rear Sight Bolter Grip 1 Bolter Grip 2 Bolter Grip 3 Bolter Grip 4 Bolter Grip Lock x2 (these go in after the nuts to keep them secure, if these don't fit tightly please glue them in after the nut goes in) Bolter Grip Rib 1 x5 Bolter Grip Rib 2 Bolter Outer Barrel 1 Bolter Outer Barrel 2 Bolter Outer Barrel 3 Bolter Outer Barrel 4 Bolter Stock End 1 Bolter Stock End 2 Bolter Stock End 1 without QD (this is the optional end for those not using a QD) M5X25MM Bolt (for stock end, you can use a 30mm or 35mm also) M4X30MM Bolt x3 M4X10MM Bolt x2 M4 Nut x4 (x5 if using QD version of Stock End) M4X8MM Bolt x1 (if using QD version of Stock End) 2-Part Epoxy (Araldite or similar) Notes 1: Parts on the diagram with striped texture are points of contact that are glued. Side Rail Covers I have included these parts, but they are plain. I have included a file for the eagle logos too. (however, I had trouble printing them and got some from Shapeways instead: https://www.shapeways.com/product/CLWA9ZY2G/eagle2?optionId=62896387&li=shop-inventory) Sights I have drilled 2mm holes and set some tritium tubes into the sights. Very easy to do for night sites.