Homemade Spring Pistol

This is my attempt at a homemade springer. It's intended to be a pistol and a tester. I used the spring from an Xploderz 200, I need to add an industrial spring in there. It uses a similar design to SGNerf's homemades, although I simplified it a bit. There's 5" of draw. It get's about 90'. The prime will eventually be a pump or bolt action.

Here's the removable shoulder stock which still accepts my 2x UMB.

The bushing is inset for less deadspace.

I need to redo the seal (hilariously janky but pretty good), and tweak a few things. The ring catch is functioning very well and you can really bang the blaster about without accidentally firing. I like it so far but need to build a larger version! There's only a few things that differ from SGNerf's design but I'll do a write-up when it's well tested.

For Fun Mod

I came across this tiny promotional Super Soaker water pistol. It was given away at burger king at some point. No real guts I suppose (triangle screws). You just fill it and whomp the pump handle forward. It didn't do too bad as a water gun and seemed sturdy. So I sealed the back of the barrel area, glued on some cpvc, enlarged the nozzle & gave it a go. To my surprise it got 15-20'! With decent dart speed too. Accuracy and range are tricky, with the mechanism of firing being so odd. But I like the idea of shooting someone at 5' with an underpowered blaster. Some practice might get some rof & hits. It seems to like buzz-bee darts and doesn't fire stefans worth a damn. Fun little in your face blaster that gives the other guy a sporting chance.

Spring / Air Combo

I couldn't resist trying this! A wip air blaster grafted onto a wip springer. The SGNerf style homemade is my first homemade springer. It needs tweaks and an eventual spring upgrade after I get the dimensions right. I hope to get a bolt action prime working. The whole contraption needs lightening before I glue & screw it together. I haven't decided on a loading system for the air blasters yet. I might do petg barrels and ramrodded darts.

2x UMB Progress

I made a few changes to my in-progress primary. The pump is the ubiquitous schwinn single action. The beginning of a trigger is there. I chopped 1/4" off the front of alot of the fittings for weight and to raise the shoulder stock a bit. I still have to do some final adjustments to the placement of the tanks. Then the dreaded check valves!

2x UMB Layout

I'm still tinkering with this a bit (the conduit on the tank area is temp), but this is close to the final layout for my 2x umb primary. The schwinn pump has an oval shape which is nice although it's a little heavy, being metal. There's alot less deadspace between the pump and each checkvalve. An sspb's oprv will be sunk into the pvc tee. The triggers shouldn't be too tough to get functional. Thanks to Pause for the cheek rest suggestion!

Pump Replaced SSPB Tweaks

I added a slice of pvc coupler to my sspb's handle to reinforce the pump. I had to saw that pump off because it dried slightly off due to my trying to reposition it.

I switched out the cpvc pump handles for baton material (lighter) and added a little foam to the end. I also sanded the top of the sspb's blast button flat, down to the orange stub, to decrease the reach for my thumb.

Micro Wye with Baton Hopper

This is kind of a kludge attempt at making a really lightweight wye for an airgun. The baton needs the rifling sanded away and then a small amount of further sanding (mostly to even out the i.d. in spots) to get good feeding. The fit is so close that this likely won't work with springer size darts. I don't know for sure though. I haven't tried sanding further yet. Other than that it offers reduced deadspace, light weight and it's clear.

Down the maw.

 I'm using a cpvc elbow as an experiment. My only other was a conduit so it's kinda apples and oranges. But it feeds well and the only thing now is finding a larger i.d. material for springer fit darts.

Tek 3 Turret Repair

I finally busted my sspb's tek 3 turret. Dang. But it was easy to fix.

I cut what was left of the stock turret near the screw off with a razor knife. The hole was marked and a small hole drilled (didn't document the size). I dug around for an appropriate screw but had to file a bit from the head to get it into the pivot. I added some craft foam (Thanks princexbuster at NH) as a seal. There was a little tuning of the holes for the air inlet and at the back of the turret. I drilled out the holes a little larger without having to redo the stock ball detent. It still indexes nice and the extra performance is noticable.