The Strongest Lower

[Fjold]

If you can't find one made of Unobtanium check on Gunbroker and other sites for the old DPMS stainless steel receivers. DPMS stopped making them a couple of years ago but you occasionally see them for sale.

[buffybuster]

Alright I'm in search of the strongest AR lower receiver money can buy. I'd like to get one that is touted for the super strong type of aluminum it uses. This got brought on because I bought a SOG Armory lower and the gap for the bolt catch/release is too wide and now the bolt release has a very pronounced side to side movement. The lower was brand new when I bought it and I dont know whether it came from the factory that way or my gunsmithing skills are terrible. Either way, waduya got?

Look for a forged lower made from 7076-T6 aluminum alloy with Type III Hard Anodizing. That's the most durable lower you're going to be able to find. Even though it seems like there are many lower manufacturers, in actuality there are only a few companies that have the dies and machinery to forge the lowers. These raw forging are then sold to many companies for finish machining. Even then many sub-contract out some or all of this machining since the magwell needs to be broached out.

[M. Sage]

A lower does not need to be strong. All it does is hold the trigger group and buffer. Hell, people have made them out of wood before. But, if you really want a "strong" one, there are a few places manufacturing steel ones on a custom basis.

This. There's no point in having a "stronger" AR lower. About all it does is hold the FCG in more or less the right place relative to the upper.

[G-forceJunkie]

Sounds like your confusing "stronger" with "Machined to proper specs." There is only 1 or 2 people forging blanks (Alcoa and perhaps someone else like Reynolds). But any yahoo with a CNC machine can make chips, the question is are they machined to spec. Anybody ever measured up the dozens of OLL manufactured lowers and see how close to the prints they are being made?

[jamesob]

atriliumcarbonicalloy, thats what buzz lightyear is made of. if someone makes it out of that, that would be the ****.

[thevic]

Just get. Spikes and call it a day

[Group B]

Group Industries stainless lower receiver (plus they're NFA F/A registered receivers)

[vta]

all joking aside, a steel lower is just gonna wear out your upper faster. unless you find a steel upper...

[tiger222]

The Dennys guns lower or the new Lancer lowers offer some interesting designs and look beefier. There were ones made by SOCOM designs that were supposed to be tough - but they are no longer around.

[Merc1500]

Thanks for all the responses guys. I bought the lower from my LGS and was buying my Ruger PC40 at the same time so Id only have to fill out the(drawing a blank) form once for both guns. So I scooped it up. It was either sog or KD and I don't like the logo for KD. I think I'm goin to go with something in the 7000 series aluminum. But I got the lower and started building with quality parts and found my lower of all things was the weak link. I created a tiny brass washer to slide between the bolt catch and that tightened it up substantially.

[Merc1500]

If anyone is interested I can list a spec list for my ar at this point but no way for me to get pics up yet.

[Barabas]

You guys make me laugh. I'm pretty sure the PS74 is the most innovative best AR system ever designed and probably made out of adamantium.

Just PM Group Picture and be ready for your world to turn inside out, or something.