Sanis Prent
Jan 8th, 2006, 11:00:07 PM
When I last left you, I was here:
http://panicked.org/sa/kw15a.jpg
http://panicked.org/sa/kw15b.jpg
About $200 and a handful of parts later, I'm here:
http://panicked.org/sa/kw15c.jpg
http://panicked.org/sa/kw15d.jpg
I installed a four position telescoping carbine stock onto the rifle's subassembly. I cannot stress to you how complicated adding this stock turned out to be. Two sets of springs and pins, two washers, and a lot of tension adjustment and thread aligning (the threads on the stock shaft are exceptionally thin and narrow-spaced.
Of course, further problems when the stock housing was put on. The tube the stock goes into is supposed to house a recoil spring and a buffer, which the bolt carrier group and firing pin housing press against after ejecting a fired shell. Normally, the spring and buffer go into the stock and the recoil buffer retaining pin is depressed against a spring below it, which allows the buffer to click all the way back into the stock.
The problem? The pin didn't depress enough, and I couldn't lock the buffer into the stock. So I bought a few other retention pin & spring kits and decided to meddle with it. The lower subassembly might not have a deep enough retention pin hole milled into the steel, or it might be because I had an abnormally long retention pin. Either way, the option for me was to grind the metal down on the buffer pin using a dremel. The pin itself is shaped like a wine flute situated upside down and without the base. It has a "cup" and it has a "stem" on top of that. The cup should rest against the base of the hole, and the spring goes up inside that. The stem is what is exposed out of the subassembly, and is what the buffer actually rests against.
I could grind either one, but I to grind the cup I'd have to completely break down and remove the stock, so I decided to grind the stem instead. So I took about half a millimeter off the metal and CLICK, the buffer went in flawlessly, and came to rest against the pin just as designed.
So now, it looks like phase 2 is a wrap on my rifle. I'm awaiting the complete upper subassembly to ship from Rock River Arms, and there should be a few minor tweaks to it before I install.
Hopefully, the bare-bones rifle will be ready for bench testing by Groundhog Day :D
http://panicked.org/sa/kw15a.jpg
http://panicked.org/sa/kw15b.jpg
About $200 and a handful of parts later, I'm here:
http://panicked.org/sa/kw15c.jpg
http://panicked.org/sa/kw15d.jpg
I installed a four position telescoping carbine stock onto the rifle's subassembly. I cannot stress to you how complicated adding this stock turned out to be. Two sets of springs and pins, two washers, and a lot of tension adjustment and thread aligning (the threads on the stock shaft are exceptionally thin and narrow-spaced.
Of course, further problems when the stock housing was put on. The tube the stock goes into is supposed to house a recoil spring and a buffer, which the bolt carrier group and firing pin housing press against after ejecting a fired shell. Normally, the spring and buffer go into the stock and the recoil buffer retaining pin is depressed against a spring below it, which allows the buffer to click all the way back into the stock.
The problem? The pin didn't depress enough, and I couldn't lock the buffer into the stock. So I bought a few other retention pin & spring kits and decided to meddle with it. The lower subassembly might not have a deep enough retention pin hole milled into the steel, or it might be because I had an abnormally long retention pin. Either way, the option for me was to grind the metal down on the buffer pin using a dremel. The pin itself is shaped like a wine flute situated upside down and without the base. It has a "cup" and it has a "stem" on top of that. The cup should rest against the base of the hole, and the spring goes up inside that. The stem is what is exposed out of the subassembly, and is what the buffer actually rests against.
I could grind either one, but I to grind the cup I'd have to completely break down and remove the stock, so I decided to grind the stem instead. So I took about half a millimeter off the metal and CLICK, the buffer went in flawlessly, and came to rest against the pin just as designed.
So now, it looks like phase 2 is a wrap on my rifle. I'm awaiting the complete upper subassembly to ship from Rock River Arms, and there should be a few minor tweaks to it before I install.
Hopefully, the bare-bones rifle will be ready for bench testing by Groundhog Day :D