3 ms·
> what you may see is a lower receiver stamped for 5.56 NATO assambled with a 7.62 upper and barrel the last paragraph is not exactly correct, a lower receiver
by walrus01 4y ago
> what you may see is a lower receiver stamped for 5.56 NATO assambled with a 7.62 upper and barrel
the last paragraph is not exactly correct, a lower receiver for 556 NATO STANAG magazines has a different length magazine well (AR-15 derived design, not AR-10) and cannot take the dimensions of an AR10 magazine/7.62 NATO magazine.
you can mistakenly chamber a .300 blackout in a 556 nato rifle upper because the blackout is the same length cartridge as a 556 nato round and will feed.
you cannot mistakenly shove a 7.62x51 NATO/.308 winchester round into a rifle lower/upper that is not an AR-10 derived design because there would be no way to even seat the magazine.
even if you were to somehow mistakenly mount an ar10/762 NATO upper and barrel on an ar15 lower the only way you could try to get a round into the chamber would be to shove it in sideways through the ejection port
- rolph 4y agothats right you cant mistakenly do that, you would know something is wrong. >>what you may see is a lower receiver stamped for 5.56 NATO assambled with a 7.62 upper and barrel<< 5.56 magazine wells can be modified to fit 7.62 magazine there a couple examples on the range right now, also a .375 win magnum necked down to a .223 projectile. up here its common to ammo up with a full mag, +1 one in through the out door
- walrus01 4y agoconsidering that a stripped designed for purpose AR10/LR308 lower is maybe $140 from a decent quality manufacturer it would be exceptionally rare for someone to hack up a AR15 lower and magazine well to accept AR10 magazines, I have never heard of anyone actually doing that. if you have a photo example of someone actually doing that on an ar15 magazine well i'd be very interested to see what the hack job looks like
- rolph 4y agoyou should check out modular lowers, hydra and i think viper-A [or vipera] have re thunk the lower into two pieces, result being exchangeable magazine wells to match the upper config. why would someone actually chop a lower? because its not available, or its a do something winter project to chase off the cabin fever.