So I find myself in the process of assembling a 7.62x39 upper and I'm trying to decide upon a bolt. The product listings for the CNA and NEA bolt assemblies use the same pictures, so I was just wondering if there are any major differences between these two aside from the manufacturer?
7.62x39 bolt- CNA or NEA?
- Thread starter Cross94
- Start date
If you mean the actual bolt,not the full bolt carrier,The NEA bolts are “emhanced”,the mugs are larger and won’t work with any barrels that don’t have the right barrel extension to match the larger lugs.
I have no idea if the TNA 7.62 bolts are also”enhanced”.
- Location
- Medicine Hat
Not to take this sideways, but do you know if the NEA bolt (223)will work with the maple ridge barrels?
Cool, thanks for the responses! I suppose it makes sense that the added material of the "enhanced" NEA bolt requires a proprietary barrel extension, but seeing as they don't offer the barrel length I want I guess CNA is the way to go. Just out of curiosity do you know what kind of steel it's made out of? 9310 like the .223 bolt?
Considering what MJS mentioned about the NEA using larger lugs...Will the CNA bolt work with NEA rifles? You guys don't have any NEA bolts on your site currently.
it's hard to say, indeed we tried to purge all NEA stuff.
it would fit if the barrel was in spec.
if you had no other options you could buy one and try it. we'll have go/nogo gauges for 7.62 soon
sorry I can't be more helpful at this time
old necro thread i know, i apologize now,
i have a NEA 7.62 bolt. It won't fit in the TNA 7.62x39 barrel...makes me sad. Live and learn.
bummer
we do have some 7.62x39 chamber gauges for anybody who's still holding and wants to check their NEA bolt/barrel.
neoconfection
Regular
- Location
- Ottawa, ON
I've fallen for TNA too many times to count...I bought an old NEA upper a few weeks ago because it was super cheap and sure enough, both the handguard and the upper had to be hand-fitted to my lower.
My bolt lasted roughly 5K. Barnaul and Norinco new stuff. Never surplus corrosive. Sheared lug. Also would recommend anything else. Warranty took 5 months. Rifle was rebarreled and given an old stock bolt that looks like the earliest rendition of a 7.62x39 bolt. Nothing like the enhanced coated one originally shipped with the rifle. New bolt had the wrong extractor, had to install the one from my broken bolt they shipped back. Just a weird way of handling service. I appreciate the new barrel seems legit but it won’t reliably feed even with the correct extractor. Stuck cases and BCG nightmares. I’m invested into 7.62x39 right now so I’ll be taking the rifle to a gunsmith in hopes of fixing it for cheaper than buying an SKS just to burn off stockpile. Will prob be going the 300 blk route after. Also the lower is not exactly in spec. Had to file and heat fit a beaver tail grip.
