Originally Posted by twa2471
I like that idea with 2 pins making it all it takes to change the caliber of the gun. I changed my mind on staying with 5.56x45 and started looking for parts to build up a x39 upper. As it stands now my parts list has 2 sets of uppers on it one for 5.56x45 and one for 7.62 x39. The x39 upper is being built up from scratch. I'm hunting down the parts to build up the upper all over the interwebs. The way it looks now, x39 upper is $36.28 cheaper than the upper for 5.56/.223.
here is the parts list that I've got for my x39 upper
7.62x 39 Upper Receiver
Flattop Upper Receiver $99.50
7.62x39 Bolt $87.98
Firing Pin $7.26
Bolt Carrier $65.00
Cam Pin $5.00
Firing Pin Retainer $1.00
7.62x39 Barrel $70.00
Flash Hider $5.99
Crush Washer $1.99
Barrel Nut $7.00
Delta Ring Set $9.97
Gas Block(low profile) $25.00
Gas Tube $11.00
Handguard Cap $3.49
Charging Handle $14.00
Gas Piston Conversion $319.00
7.62x39 Upper Total (w/o gas piston) $430.68
7.62 x 39 Upper Total (w/ gas piston) $749.68
i have built a few 7.62x39s. they run pretty good. the big problem is mags the c-product mag is about all you can get these days. they generally don't run with a full load of rounds.
a few other little nit-picky deals like the firing pin can't strike deep enough to set off some of the russian ammo with deep set primers. you can tirim the back side of the bolt and get a slightly deeper strike.
the 7.62x39 is a little more involved that a 5.56 is --though it ain't all that hard either--LOL
DSA upper is a 6 month wait at this time, unfortunately...
Originally Posted by SkeeterB
i watched a couple youtube video where they just took a few thousanths of an inch off the firing pin and bolt to get the required depth to set off the deeper set primers on the steel cased Russian ammo.
I'm not getting all the parts from one place. I'm getting bits and pieces from different sites.
Originally Posted by wpflgun