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Page AR-15 » Rimfire and Pistol Calibers
AR Sponsor: bravocompany
Posted: 4/19/2024 12:02:34 PM EDT
Not much experience with ar9's although I have a 6951.

Have a spare forged SBR'ed lower.  Plan to purchase H&R635 style upper.  Mean arms mags with the ejector.  Lower has a standard (not A5) receiver extension, which I will run an a5 buffer for 9mm for the extra length and also an ALG trigger.

Am I on the right path, any compatibility issues or things I should look out for?
Link Posted: 4/19/2024 1:28:08 PM EDT
[#1]
What buffer weight?
Link Posted: 4/19/2024 2:58:37 PM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By s4s4u:
What buffer weight?
View Quote
I have spares of all the a5 buffers, so will play with it.
Link Posted: 4/19/2024 3:03:12 PM EDT
[#3]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ajacobs:
I have spares of all the a5 buffers, so will play with it.
View Quote


Blowback 9, so you will want some weight.  What does the bolt assy weigh?
Link Posted: 4/19/2024 3:20:10 PM EDT
[#4]
Haven't ordered it yet.  But I have a variety and will run suppressed as well.
Link Posted: 4/19/2024 6:24:15 PM EDT
[#5]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ajacobs:
Haven't ordered it yet.  But I have a variety and will run suppressed as well.
View Quote


FWIW, there tends to be a "sweet spot" of 22 - 24 ounces combined buffer/bolt weight with typical blowback 9's

Just something to consider.
Link Posted: 4/19/2024 8:52:03 PM EDT
[#6]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By s4s4u:


FWIW, there tends to be a "sweet spot" of 22 - 24 ounces combined buffer/bolt weight with typical blowback 9's

Just something to consider.
View Quote
Thanks, it is good to have a starting point.

Link Posted: 4/19/2024 9:36:15 PM EDT
[#7]
https://blowback9.wordpress.com/

made by one of the frequent posters in this sub
Link Posted: 4/21/2024 7:38:11 AM EDT
[#8]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By aznanimekid:
https://blowback9.wordpress.com/

made by one of the frequent posters in this sub
View Quote
Thank you, that is a wealth of knowledge.  Still digging through, but haven't seen anything so far that indicates the parts won't work togeather so I might click the buy button.
Link Posted: 4/25/2024 1:10:06 PM EDT
[#9]
When using an a5 buffer in a carbine tube for 9mm do I use a rifle length spring or a carbine length one?
Link Posted: 4/26/2024 3:56:54 PM EDT
[#10]
A carbine length one.
Page AR-15 » Rimfire and Pistol Calibers
AR Sponsor: bravocompany
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