If I had a 1917 top cover & a top cover latch, would I be able to install it on a 1919 with the 308 parts from the 1919? If it has to be machined, who could do it? What other parts would be needed besides the sight? Does the 1917 back plate fit ok?
The internals of the A4 and 17A1 top covers are basically the same. Take the guts out of the A4 install them in the 17A1 cover. The 17A1 cover and latch will drop right on the A4 receiver. The 17a1 back plate is not a problem either. That's how I did my 17a1 WC conversion from a US GI 30-06 kit. Of course after doing this, you then have to start your search for the holy grail, ie: a sight ladder, slide, windage knob assembly, elevation screw, etc., etc., etc.. LOL!
Yes,I know about the sight, I wonder if anyone out there has one they would part with, or trade for something nice. I noticed you said you converted from USGI 30/06, wonder what about converting the 19 to17 in Izzy 308?
The Browning series as a little finger that sticks down off of the feed pawl that is designed to prevent the belt from advancing in the event the round in the feed tray does not get extracted (an anti-double feed device). Basically, it rides up on the next round in line and prevents the belt pawl from grabbing the belt to advance it.
When the Izzys converted the 1919s to 308, they had to make a new belt pawl that has a jog to the rear, so it would clear the link/belt and the double feed device will function correctly. This is because the 308 round is shorter than the 3006.
In order for this new "finger" to clear the belt pawl slot in the feed cover, a taper was cut into the underside of the feed cover. You can do this with a hand file if you have an example to copy (like the feed cover off of your 308 kit). If you do this, and install your feed pawl from the 308 kit, it will work.
The belt holding pawl in the LSP and trunnion is also almost double the size, so you have to either use the parts from an Izzy conversion, or modify your LSP and trunnion (if you get a 3006 water jacket, good luck!).
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