MachIVshooter
Member
Well, I suppose it'd be rather tricky without a few pieces of equipment that aren't in your average home, but when you have a bunch of extra A2 grips, M4 stocks and a day that isn't good for much besides screwing around in the shop or playing video games, this is what happens:
Two grips were sacrificed to make this work, and obviously the buttstock is extensively modified, but otherwise my only investment was some steel stock, a few springs and fasteners and about 5 hours of my day.
It works in the same way as the commercial slidefire stock, but I opted for wings on both sides of the trigger to reduce the margin of human error. The assembly slides back and forth 1/4" on the buffer tube, and the grip is kept aligned by a step cut into the right side of it that mates with the block attached to the lower, which retains the selector spring:
The chassis that connects the grip and stock is a continuous piece of 1/2" x 1/4" steel, runs right through the grip. It's secured to the grip by one screw at the bottom and another on the welded left side trigger wing. The stock is attached vie a roll pin at the lower portion and a 3/8-24 button head allen that is threaded directly into the existing detent pin hole. Obviously, I had to mill off a portion of the plastic to make it mate correctly.
I'm not real good about before and after pictures, but I did have the presence of mind to snap the mock-up:
It does secure to the rifle like the commercial slidefire, and can be locked for single fire. The cut down stainless socket head screw at the rear of the stock is spring loaded; With the piece of wrench under it, the stock slides. With the piece of wrench pulled back and the bolt all the way in, it's locked. The assembly is removed simply by holding the bolt all the way up. I will probably improve this aspect of it later with a lathe machined pin, but I was getting tired.
It is a sort-of dedicated lower for this stock, at least in regards to the safety selector. I had the selector removed during mock up, didn't account for clearance there, so the selector has been dremeled a bit. Oh well, still works fine.
I'll also paint it at some point here, but I didn't want to wait for paint to dry to see if it was all going to work out. Haven't test fired it yet, but I'm confident it'll work just fine.
And no, the buttpad isn't to deal with recoil. lol. It ended up a little on the short side, so I'm just spacing it with that slip on pad for now, until I have time to mill a new plate from ABS or Delrin.
If the real slidefires were priced reasonably for the hunks of plastic they are, I'd have just bought one. But $350 is ridiculous, and they're known for breaking. Mine won't, and even if it does, it's easily fixed.
Here's to cold, snowy days!
(now I need a warmer, not-so-snowy day for testing!)
Two grips were sacrificed to make this work, and obviously the buttstock is extensively modified, but otherwise my only investment was some steel stock, a few springs and fasteners and about 5 hours of my day.
It works in the same way as the commercial slidefire stock, but I opted for wings on both sides of the trigger to reduce the margin of human error. The assembly slides back and forth 1/4" on the buffer tube, and the grip is kept aligned by a step cut into the right side of it that mates with the block attached to the lower, which retains the selector spring:
The chassis that connects the grip and stock is a continuous piece of 1/2" x 1/4" steel, runs right through the grip. It's secured to the grip by one screw at the bottom and another on the welded left side trigger wing. The stock is attached vie a roll pin at the lower portion and a 3/8-24 button head allen that is threaded directly into the existing detent pin hole. Obviously, I had to mill off a portion of the plastic to make it mate correctly.
I'm not real good about before and after pictures, but I did have the presence of mind to snap the mock-up:
It does secure to the rifle like the commercial slidefire, and can be locked for single fire. The cut down stainless socket head screw at the rear of the stock is spring loaded; With the piece of wrench under it, the stock slides. With the piece of wrench pulled back and the bolt all the way in, it's locked. The assembly is removed simply by holding the bolt all the way up. I will probably improve this aspect of it later with a lathe machined pin, but I was getting tired.
It is a sort-of dedicated lower for this stock, at least in regards to the safety selector. I had the selector removed during mock up, didn't account for clearance there, so the selector has been dremeled a bit. Oh well, still works fine.
I'll also paint it at some point here, but I didn't want to wait for paint to dry to see if it was all going to work out. Haven't test fired it yet, but I'm confident it'll work just fine.
And no, the buttpad isn't to deal with recoil. lol. It ended up a little on the short side, so I'm just spacing it with that slip on pad for now, until I have time to mill a new plate from ABS or Delrin.
If the real slidefires were priced reasonably for the hunks of plastic they are, I'd have just bought one. But $350 is ridiculous, and they're known for breaking. Mine won't, and even if it does, it's easily fixed.
Here's to cold, snowy days!
(now I need a warmer, not-so-snowy day for testing!)
Last edited:
eek
