Progress pictures
Well my parents left and I was able to get started on the rifle.
There were a few small things that I had to do with the rifle to get it to work with all the parts. I had to shave down the delrin rings on the piston itself by a few thousandths, I had to sand the inside of the cylinder itself ( I honestly don't like the cylinder thus far ), had to file down a little bit of the hop chamber holding block, and then of course cut off a little bit of the trigger guard.
The spring in this thing...... WOW ...... this thing is going to shoot HARD. I am 210lbs 6'1" and am able to pull back quite a heavy spring, but this thing was giving me troubles. Though I am not sure if it is due to the rough cylinder, or the receiver being to tight on the cylinder. I am going to take both of them to work with me tomorrow and put them on the big lathe and give them a spin to polish them as best I can.
The hop chamber is very nice, and I honestly like it a lot. It fit nicely in the outer barrel, and the hop bucking itself is longer than normal, due to it using AEG inner barrels. It also comes with a plastic anti blow by ring that is squished between the chamber itself. You will have to use your hop arm, and the ball detent thing. There is a stainless bar for the hop arm to rotate on, as well as a stainless pin at the bottom where the adjustment slider would ride. It is made out of aluminum so you don't have to torque down the bolts to hold tight, but the finish on the part is top notch. The bucking it comes with like I said is extended in length, and has a very nice "H" style nub inside ( so a flat bar hop arm will work best )
Piston on the lathe getting a trim
Hop chamber
Chamber together with the madbull inner barrel
Outer barrel getting heated to remove the threaded portion
Inner and outer barrel together, and showing how much hang over. Can either cut the inner barrel back to the 303mm or bore out the threaded portion and have the barrel run through the suppressor. Can cut back the outer barrel a little bit as well, to have the inner barrel go right to the end of the suppressor.
Hop chamber inside and screwed in
Rifle in stock
Outer barrel and inner barrel in stock for comparison
PPS Cylinder inside receiver, I am digging the black look of everything.
Cylinder pulled back, and man was that a beast. I can honestly say I don't think I would be able to pull the cylinder back from the prone position.
Now SWVA you were asking about the bolt handle going to the left hand side. If I do this the bolt wont lock when you pull the bolt up, it will just kid of flop around. I can do that for you, but thought you would like to know.
The rough cylinder pull was from the cylinder itself, the burs in the sear channel itself. After some work with a file, and swapping between springs and what not I got it really smooth. Though I am finding that the most of it is due to the beast of a spring. With a .20 bb was able to shoot through the bottom of a can from a foot away
