So I have had an old SL68II sitting around in my basement for awhile that I modified, and have yet to use. Regardless, I have seen some pumpmag projects around and had an urge to build one, but always put it off due to the investment in $150+ for a kit. When XM-15, mentioned, he was coming out with a kit and it was going to be sub $70, I posted my interest and ended up being first on the list. Long story, short, I got the kit and ended up building a pump. I wanted a front grip, but wanted it shorter so I optioned to have XM-15 mill the block to accept an RTPro vert ASA that I had laying around. In order to cut some weight, I figured to have the front grip act as a reg as well, so I removed the reg from the valve and picked up a cap from Duece Machina from MCB. (BTW XM-15 offered to make one as well if needed). I am now using a Bob Long HP reg to regulate the input to the valve.To keep the rail from hanging out, I cut it down and sent it to Lukes to get pump milled, something XM also now does. For a body, I used a minimag body that Lukes had previously done a vert conversion on, and a Redz Cam-Loc feedneck is keeping the Winchester hopper in place. I removed the stop lid and epoxied a spring lid from an old pod I had laying around. I also ended up with a good deal on a Micro CAII that I picked up on Ebay. Winning this was one of the dedciding factors in making this marker, as well as selling the Micromag body which left me with a single frame and valve with a Phase II back that no one wanted to buy.
What actually impressed me the most was the fact that this thing actually worked ON THE FIRST TRY! Sort of. I did realize after a few shots that it was still firing semi auto, but clipping the main spring solved that. It has been awhile since I used CO2, and so far, I have found my FPS to be somewhat erratic. I was testing in my 60 degree or so basement, and will have to do some more fiddling to see if I can get it better. I am thinking about sending the valve out to get devolumized, wondering if this will help, or if it is the Bob Long reg that is inconsistent. I know CO2 by nature is not very consistent, but was defintiely hoping for better than this.
Here's a pic of the semi finished project. Additional plans are hooking up some sort of "hitman mod" and than sending it out to get reanodized in gloss black.
What actually impressed me the most was the fact that this thing actually worked ON THE FIRST TRY! Sort of. I did realize after a few shots that it was still firing semi auto, but clipping the main spring solved that. It has been awhile since I used CO2, and so far, I have found my FPS to be somewhat erratic. I was testing in my 60 degree or so basement, and will have to do some more fiddling to see if I can get it better. I am thinking about sending the valve out to get devolumized, wondering if this will help, or if it is the Bob Long reg that is inconsistent. I know CO2 by nature is not very consistent, but was defintiely hoping for better than this.
Here's a pic of the semi finished project. Additional plans are hooking up some sort of "hitman mod" and than sending it out to get reanodized in gloss black.
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