Adams piston kits

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Posted: 2/6/2022 10:23:33 PM EDT

Are these still a thing? Am trying to decide if they’re worth it, since AA’s in flux.

I have a kit—midi, I think, i bought it new, installed & never shot it, then removed it when i needed another upper.

Or, with AA’s “flux,” is it junk?

Posted: 2/6/2022 10:24:56 PM EDT

[#1]

GTG.

Posted: 2/6/2022 10:56:22 PM EDT

[#2]

Did AA sell them with bolts & FPs? I don’t want to mislead. I usually used BCM BCG & Bolts, but this bolt isn’t MPI/HPT.

I bought it like 8-10 years ago. It has a little CD/DVD.

Posted: 2/7/2022 12:06:17 AM EDT

[#3]

Unless you bought a completed upper or rifle, they typically don't come with a bolt or FP. Carrier only if you buy the kits.

Posted: 2/7/2022 4:41:55 PM EDT

[#4]

We do not sell the conversion kits with a bolt, firing pin, firing pin retaining pin, or a cam pin. We do however sell a carrier completion kit on our website, which does come with these 4 items. Any questions on fitment or troubleshooting, please reach out to [email protected] or direct to me [email protected]

-Phil

Posted: 2/7/2022 5:10:17 PM EDT

[#5]

Thanks Phil.

I’ll post it in the EE. I have no idea where I got the bolt. I bought it around 2015, I think? Whenever the piston conversion was reputed to be “better” and like I said—installed & never used.

Posted: 2/7/2022 9:26:10 PM EDT

[#6]

@AA_Phil

Do you have operating rod length specs? The operating rod is ~9”. I’m 99.9% sure it was a carbine barrel, but i found an online source that says 7” for carbine, 9” for midi & 12” for rifle—I think someone extrapolated gas tubes to piston operating rods….

Thank you.

Posted: 2/8/2022 8:32:31 PM EDT

[#7]

I've built up AA kits on uppers for a few guys at work. Have never had a problem with them. I recently built up a 6.8 with an AA kit. It runs fantastic. Zero problems.

Posted: 2/8/2022 8:39:54 PM EDT

[#8]

No interest—which is why I installed & never shot it.

It’s listed in the EE. I shoot my 3 cans DI with a PRI Gas Buster. The original plan was to use the kit for cans, but I never found I needed it with the PRI charging handles.

Thanks, though.

Posted: 2/9/2022 7:29:14 PM EDT

[#9]

Quote History

Quoted:
@AA_Phil

Do you have operating rod length specs? The operating rod is ~9”. I’m 99.9% sure it was a carbine barrel, but i found an online source that says 7” for carbine, 9” for midi & 12” for rifle—I think someone extrapolated gas tubes to piston operating rods….

Thank you.

View Quote

I have a verified carbine and rifle length op rod here, I'll measure so you can post for sure.

ETA: Carbine is about about 9 1/8", rifle is about 13 1/16"

Posted: 2/9/2022 7:59:10 PM EDT

[#10]

Thanks!

Posted: 2/10/2022 6:16:59 PM EDT

[#11]

Quote History

Quoted:
I've built up AA kits on uppers for a few guys at work. Have never had a problem with them. I recently built up a 6.8 with an AA kit. It runs fantastic. Zero problems.

https://www.ar15.com/media/mediaFiles/89/20220105_103634-2229175.jpg

View Quote

Hey, that's a close example what I did with my 6.8 AA drop in kit project I did 10 years ago.

Posted: 2/18/2022 12:37:05 AM EDT

[#12]

Quoted:
Are these still a thing? Am trying to decide if they’re worth it, since AA’s in flux.

I have a kit—midi, I think, i bought it new, installed & never shot it, then removed it when i needed another upper.

Or, with AA’s “flux,” is it junk?

View Quote

They’re great!

[ARCHIVED THREAD] - Adams piston kits

AR-15 » AR Piston Systems

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