Aero Percision lower receiver

[Tanfodude]

How are they different from Doublestar lowers?

 

[Billythekid]

i bought my m4e1 lower to day i have a question can you use detent spring and pin or do you need the pin spring and screw from areo

 

[Billythekid]

this is my firs build

 

[gmcttr]

i bought my m4e1 lower to day i have a question can you use detent spring and pin or do you need the pin spring and screw from areo

I assume you are referring to the rear takedown detent. You can use a standard spring and detent pin without a screw or get a 4-40x1/8" set screw from a hardware store, Lowes, Menards, etc.

If you use the screw (and I love it) you need to clip a couple of coils off of the detent spring to make up for the extra length of the screw.

I suggest having a few extra springs in case you launch one into oblivion trying to assemble it. I use the flat side of a small straight bladed screwdriver to press the spring in and slide it back as I place the set screw (held on the end of a hex key/allen wrench) over the spring.

 

[NICKT93]

I have their LPK in one of my Rifles , so far works great!!

 

[Billythekid]

i got mine yesterday i like it now i just need to get the rest of the parts

 

[Billythekid]

i had no idea what you were talking about,, i saw one on the net last night*** now i know

 

[Billythekid]

i got a great deal 50% more than a anderson but from what i understand it is worth more than double

 

[Billythekid]

i had not heard any thing about double star since the last gun scare<<< when i heard about them for the first time

 

[Expat]

I don't know that there is a huge difference in one mil spec lower compared to another mil spec lower. I have paid extra a few times because of the little picture that Spikes puts on theirs.

 

[Billythekid]

thanks i will try it

 

[Billythekid]

thanks i will try it

 

[Kevo9009]

I’ve personally used Aero in my .308 build and also built two 5.56 rifles with their upper and lower sets. No complaints except for a little bit of media can collect in the detent spring holes. (Easily removed but many people have issues during assembly) Price is very reasonable. They do offer plenty of sales and military discount. They also partnered with ballistic advantage who makes great barrels and are also priced well IMO.

 

[cbhausen]

I have built several Aero lowers (including an M4E1) without issue. Their LPKs have been hit or miss when it comes to the fire control group though.

As for the takedown spring and plunger being retained by the 4-40 setscrew in their LPKs, the spring will coil-bind if the screw is beyond flush with the latch plate seating surface on the lower receiver, thus interfering with proper function of the takedown pin.

Insert the 4-40 screw until just flush (check by sliding a flat object across the screw) and you should be fine without having to shorten the spring. That’s my experience anyway.

 

[Kevo9009]

I’ve always just cut the length of the set screw off of the spring and it’s never been a problem. My sample size is only 3. But I do like your idea of only tightening to flush fit it.

 

[tedk]

Aero is good to go.

 

[drillsgt]

I’ve always just cut the length of the set screw off of the spring and it’s never been a problem. My sample size is only 3. But I do like your idea of only tightening to flush fit it.

Yeah, my M5 was virtually impossible to set the screw without shortening the spring, I tried for about an hour lol to get it to work. Finally shortened the spring and had no issues, maybe it's different on the M4's I don't know.

 

[rmw250]

I have done dozens of builds with Aero and have had 0 issues. They are partnered with ballistic advantage which makes nice uppers/lowers as well

 

[indynotch50]

Who in central Indiana keeps them in stock? I'm looking to purchase one for another build.

 

[Tanfodude]

Who in central Indiana keeps them in stock? I'm looking to purchase one for another build.

SNR in Plainfield.

https://www.facebook.com/SNRSHOOTINGSUPPLIES/