AR-Pattern 9mm Lower

[tacticalmaster45]

I'm looking to build a SBR AR 9mm (Glock mag compatible) and want to hear suggestions on whose lower I should purchase. Angstadt, QuarterCirlce 10, New Frontier, and Lone Wolf are the ones I am currently considering.

 

[Tactically Fat]

CMMG also has a 9mm lower IF you think you may want Colt-pattern mags.

I had one for a very very short time until I abandoned the project.

 

[JStang314]

I went with Joe Bobs Spartan (New Frontier). Tried to stay cheap so I didn't go QC10 or Lonewolf. But after waiting 4 months and still waiting on the upper to be in stock, I wish I would've gone QC10. Would've cost an extra $100-200 but at least I would be done by now. Runner runner guns also has their "Thor" lower which is also a new frontier.

 

[jd4320t]

I'd go QC10 for sure. I've seen one in person and I really like what they're doing.

 

[ACC]

I have built two SMG AR's off of QC10 lowers (one AR-9 and one AR-45). I really think their fit and finish is the best I have seen. If you pay close attention, they also offer quite a few sales throughout the year.

 

[kolob10]

I have a Palmetto Armory 9mm billet lower/Glock mag. It runs well. Also have a Palmetto 9mm with colt mag. Both run well and are reasonably accurate with quality amm.

 

[sgreen3]

I went with a New Frontier Armory Glock Mag lower. I like the lower a lot, I went with this one due to the fact when I was in the build process they had a coupon code for them and get 10% off so I got a crazy good price on it. Only thing to keep in mind with the NFA lower is they don't incorporate the Last Round Bolt Hold Open into the lower. Their design puts that feature into their upper receiver they sell. Not a huge deal just be aware of it if you decide to go0 with the NFA lower. For the upper parts I went with MASdeffense for the barrel upper receiver and hand guard. I went with a YHM dedicated 9mm buffer however. MASdeffense has some Great quality items for very reasonable money. I've got a ton of rounds through mine and hasn't missed a beat.

 

[rvb]

something to consider on an SBR is if you go w/ a mag well block vs a dedicated lower, you can change caliber later should you tire of the 9mm and not have to re-register something else...

-rvb

 

[Tactically Fat]

something to consider on an SBR is if you go w/ a mag well block vs a dedicated lower, you can change caliber later should you tire of the 9mm and not have to re-register something else...

-rvb

This is why I sold my CMMG 9mm lower and went with a traditional lower.

 

[tacticalmaster45]

something to consider on an SBR is if you go w/ a mag well block vs a dedicated lower, you can change caliber later should you tire of the 9mm and not have to re-register something else...

-rvb

I already have a registered 223 lower so this isn't a concern for me plus I don't care for the look of a mag well block. Thank you for your input

 

[stony]

I went with the NFA lower and Matrix side charging upper for mine. Still not complete yet but it's getting there.

 

[tacticalmaster45]

I went with the NFA lower and Matrix side charging upper for mine. Still not complete yet but it's getting there.

Why did you choose the side-charger out of curiosity?