Not really a build but., I purchased a Yugo M77 recently.
It is an export model modified for USA import.., Yugo DMR chambered in .308.
They are pretty well priced>>>>
$560 w/free shipping
Comes with two 10 round mags, polymer thumbhole stock and slant cut receiver. The muzzle nut is tack welded in place but the barrel is threaded 14mmx1 underneath.
I removed the spot weld at the muzzle nut and removed the FSB front pin to add the plunger and spring.
I used an old receiver stub piece to make a cover plate for the slant cut rear. This will get welded into place later.
USA M70 furniture I had from a previous buy.
Adding a Yugo M76 scope to the rail on the rifle.
This uses a standard length 1.5mm Yugo M70 type receiver but with the mag well, center support and trigger guard set back a bit to accommodate the longer .308 cartridge. The bolt is pretty standard to M70 but beefier locking lugs.
Gas system is adjustable valve type and same tube & piston as the M76.
The shorter receiver was a little surprise., unlike the M76 which has the longer milled receiver .
I shot it only about 30 rounds for function, general zero and straight sights etc. All good.
I was contemplating building a M76 kit I have in .308 but tis was much easier and for $802 shipped I just threw down the money. I have a small supply of maybe 400 rounds of .308 but this will not be a cheap shooter.. But I wanted one for some time.
I believe that M14 mags can be modified to fit the rifle for 20 round capacity.
Front end with nut removed, weld cleaned up and plunger added>
Pic of slant cut receiver and receiver stub piece before final fit>
Receiver piece in place and next step is welding>
Mocked up with furniture and scope etc>
Mostly finished., just need to decide what optic to use and looking for a cleaning rod retainer ring for the barrel. Modified a 20 round M14 ma for fit.