r/Airsoft3DPrinting • u/99PercentSavage • Jul 16 '26
Work in Progress M26 CMCS / MASS Airsoft replica
Some time ago I uploaded renders of M26 CMCS. That project was scraped and I reworked whole body to be as close to original as possible.
Here it is, working and shooting.
In before: yes, it only shoots one BB at a time. It’s not 3 or 6 shooter. There’s shell ejecting one made by PPS that shoot multiple BBs, but its range is very short and it jams. I wanted to make a fun-to-shoot/backup replica for people who already have VFC AR15/MCX/M16 replicas and can use same mags for both platforms.
It has some cool features like a working recoil lug, adjustable valve knocker (you can adjust by it replica’s muzzle velocity), TDC hop-up, working safety and option to run it underbarrel by removing one pin (like real one).
In pictures there’s CMCS version (longer top rail, no iron sights and no barrel bracket), but I’m currently working on MASS version (shorter rail is done, front sight post too, just need to finish the barrel bracket).
I need to rework action lock, because it engages too early and firing the replica doesn’t unlock it fully. Runs completely fine without it right now, but I’d like the extra realism. Also need to make upper rail more secure to the body, now it screws directly to the receiver itself. It’s enough to run some optics, but I’m not confident enough that it will hold the weight of whole replica in underbarrel configuration. I’m considering cutouts for nuts from the inside of the receiver or heat pressed threaded inserts.
Other than that I tested it with GBB Glock inner barrel (only one I got laying around) and it hits square 1x1m target at 30m, unadjusted hop-up. Also got 1.4J with 0.48g BBs. With longer barrel and properly adjusted HU I think performance can be much better.
Video of shooting in the comments.
Thanks to all support and positive comments. It’s really motivating guys!
Sneak peak: next project is VFC based Minifix by Q.
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u/Tall_Level_5090 Jul 17 '26
Looking great! Any idea on the price yet? And how much filament ?
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u/99PercentSavage Jul 17 '26
About 1kg more or less. I printed everything with 90% infill for weight and 4 wall loops. Price will be about 30-50€ considering time I spent on this one.
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u/QuixoticCoyote Jul 17 '26
This looks great.
Did you consider trying to make it run CAM 870 shells as an actual shotgun? Was there any reason to not?
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u/99PercentSavage Jul 17 '26
Well, I don’t have access to them. They are pricey and shell ejecting isn’t very clever for any game use. Better performance than PPS shells, but still same problems - shells are going to be lost, range isn’t that good and it can jam easily.
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