AR-9 Buffer and spring

[jmgdfther]

I have a Palmetto AR-9 glock mag lower on the way. I already have the upper, 4" barrel with the KAK and I was going to put a sig brace on it but I didn't order a buffer and spring. Is Palmetto buffer spring good or are there others that are better for running it?

 

[foopid stucker]

I would imagine the palmetto buffer and spring should do fine. My question is why would you need an arm brace for a 9 millimeter with a 4-inch Barrel?

 

[Wahoo95]

I would imagine the palmetto buffer and spring should do fine. My question is why would you need an arm brace for a 9 millimeter with a 4-inch Barrel?

Because he can't put a stock on it.

 

[Wahoo95]

I prefer heavy buffers for 9mm. Mine ran best with a heavy 9oz buffer which really smoothed it out.

 

[jmgdfther]

I would imagine the palmetto buffer and spring should do fine. My question is why would you need an arm brace for a 9 millimeter with a 4-inch Barrel?

I don't have an sbr stamp

 

[Tim]

I bought a PSA AR 9mm pistol kit last year. The buffer and spring that came with it work perfectly. I've since SBR'd it and the same buffer/spring work just fine with a carbine tube.

 

[BigWaylon]

Standard spring for mine, but using the Hahn 9mm buffer.

 

[Milky7272]

I just got a psa upper and am having trouble with aluminum cased ammo. Has anyone else ran into this? I just got some brass cased and going to try it. I also dropped 1.75 worth of quarters into the buffer tube but haven't tried it out since. Anyone else doing this?

 

[Tim]

I just got a psa upper and am having trouble with aluminum cased ammo. Has anyone else ran into this? I just got some brass cased and going to try it. I also dropped 1.75 worth of quarters into the buffer tube but haven't tried it out since. Anyone else doing this?

what kind of problems?
colt or Glock mags?
dedicated lower or mag block?

I helped a friend work his ATI 9mm out today. He was getting fail to feed issues with the bullet getting jammed back into the case. His came with a carbine weight buffer, changing it out for an H3 buffer worked well, a 9oz AR buffer solved it definitively.

 

[Milky7272]

It's a psa glock mag. It was stovepipeing about once a mag. I believe it was the ammo. I had read on the other site probably a year or so ago about putting the quarters in the buffer to shorten the bolt travel.