That'll be cool to see. My dad was working on his own using a tm as a base gun. Unfortunately as is to be expected from him it's fallen by the waysideSo a while ago I started to build a hk21e machinegun based on a jg g3 but the gun was a bit screwed and I made a bit of a hash of upgrading it so That rather killed my motivation for working on that. I recently sold off that gun as part of my process of swapping entirely to gbbrs. Having watched a few explosive enterprises vids I decided to give this another go. This time the base gun is a we gbb g3. It came to me with the barrel shortened and Ive just picked up a proper hk21e style clubfoot stock for it. Im planning to model and print most of the bits for it in plastic and then send them off to be done in aluminium when im finished. This is just the first step.
1 new sight block that just sits on the cocking tube and dosent go down to the barrel.
2 front handguard cap with a block hidden under it which bolts to the handguard pinhole to keep everything rigid
3 a sleeve to go over the barrel to give it the proper machinegun profile. I have sanded and painted this bit since the proper barrel is tapered and making one of these in metal would be a pain. will probably leave it plastic. It just screws onto the outer barrel nut and gets pinned in place by the flash hider.
next up is to make the rear handguard cap and order some steel or aluminium tube to make the actual handguard. Ill be building a pinhole into the rear handguard cap where the belt feed mechanism attaches. This would normally be on the reciever instead of the magwell but Im trying to make this in a way which requires as little modification to the base gun as possible. Once the belt feed assembly is made ill be making a box mag to slot onto it, fitting the guts of a 249 box in there, hpa tapping the original mag and drilling a hole in the front for bbs to feed in from a spring tube. Im not really a fan of hpa but for a gbb lmg like this its simply the best option.
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You posted this just before I was about to put an update on XD. So originally I was trying to use the original mag and hide it inside the box mag which would have lead to a much larger box mag than reel steel. I was also considering chopping the mag in half and splicing it smaller until @The_Lord_Poncho Made a suggestion that had somehow entirely slipped my mind "3d print one" And so I have designed and printed a new bottom part using the top half of the original we magazine, no modification needed. To be clear this will be sent off to be machined or printed in metal before I use it but I have tested it by pumping it up very slightly with my hpa pump (while wearing safety glasses) and it does infact cycle the gun just fine though it leaks around the bolts even with o rings which a metal version will hopefully fix. Did also have to remove the paddle mag release to get the connector in a good spot.
Yeah Ive seen that one though since im basically modifying a rifle its closer to their colt lmg or hbar builds
A printer? Wife won't let me have one of them. Ive got airsoft, pc gaming, lego and warhammer to hobby with. A printer will just be a death sentence for me. I'd have too much to print.
First decide if you pla (plastic) or sla (resin). Pla is more hardy and better for larger part whereas sla is better for smaller for detailed parts.
Yeah they are decent printers. For most parts absolutely fine, I prefer resin for more detailed parts but they aren’t as hardwearing and you need to wash and cure.
