AR9 build or buy

[Rucker61]

I saw the Endomag when it came out and thought that would be great if it holds up. How is it doing for you? 100's or rounds or 1000's through it?

A couple of hundred, maybe. Just haven't had time to shoot it much.

[Little Dutch]

If you want a AR-9 Build it. Get what you want as far as parts. Just use the same bolt, upper, and lower from the same manufacturer. Use a KAC adjustable buffer. Mine locks open.

Might want to consider a PTR-9C, in the end the cost will be the same.

Unless I am seriously mistaken about the price of the PTR-9C, the AR-9 should be about half of the cost. There are two AR-9's from CBC posted in the trading post right now for $650 out they door. New in box with the last round bolt hold open. I have several uppers from CBC, they work great.

[Hoser]

I saw the Endomag when it came out and thought that would be great if it holds up. How is it doing for you? 100's or rounds or 1000's through it?

I am using the Endomag inserts for my CMMG Guard upper. They work flawless after about 1,200-1,500 rounds.

[TEAMRICO]

Do these AR9 builds all lock the bolt back on an empty mag, or has that issue been addressed and I shouldn't be concerned about it?

Uzi mags will not lock back if you convert them.
ASC and ProMag COLT style will hold open.

I successfully modified an Uzi mag to fit my build and it does not have the tab on the follower to have LRBHO capability.

[Colorado Osprey]

Has anybody else been looking at the Palmetto State Armory PA-5 MP5 clone? Supposedly $1000 list $600 street price.. They will be making mags also.
https://www.youtube.com/watch?v=OdKzoZEXvNU

[stevew]

So if I use the Endomag and then buy a complete 9mm upper what do I need to do to the buffer? Anything? I have both 556 pistol AR and 556 rifle ARs. I may be low on water intake today but am I forgetting anything besides what I just mentioned here?

I am using the Endomag inserts for my CMMG Guard upper. They work flawless after about 1,200-1,500 rounds.

[DenverGP]

If they get down to $600-700 range I'll be very interested.

Has anybody else been looking at the Palmetto State Armory PA-5 MP5 clone? Supposedly $1000 list $600 street price.. They will be making mags also.
https://www.youtube.com/watch?v=OdKzoZEXvNU

[Rucker61]

So if I use the Endomag and then buy a complete 9mm upper what do I need to do to the buffer? Anything? I have both 556 pistol AR and 556 rifle ARs. I may be low on water intake today but am I forgetting anything besides what I just mentioned here?

I used the Foxtrot Mike heavy buffer along with a rifle spring.

[Hoser]

So if I use the Endomag and then buy a complete 9mm upper what do I need to do to the buffer? Anything? I have both 556 pistol AR and 556 rifle ARs. I may be low on water intake today but am I forgetting anything besides what I just mentioned here?

I didnt do a thing. I was already using a Tubb flat wire spring and a H3 buffer.

[stevew]

So I found this. This seems to be the lowest priced way to get into an AR9 if you want to reuse your own lower:
https://karrisguns.com/kg-Defender-9...n-endomag.html
Reviews of them have been hit and miss and most of the misses have been from long long ago around 2012. One thing in this price is a complete endomag (10 round) if you get it shipped to Colo. The endomag costs $40+ if you buy it direct from the manufacturer.

But then I watched Larry Potterfield put an upper together online last night and putting on the carry handle sight seemed to take the longest. I'm not planning on one of those.