For 9mm PCC This is the Way!

[smdub]

This is the way:

https://www.gunbroker.com/item/1036138841

 

[calicojack]

Absolutely! They run cheaper than the PSAs(why?).

https://www.gunbroker.com/item/1023884891

Interesting- those H&R retro rifles really do command a premium.

 

[outrider58]

Interesting- those H&R retro rifles really do command a premium.

...just for slapping a $50 retro stock on them. I'd go with the Colt any old day.

 

[Worsley]

I have zero issues with my blowback AR9. Has a JPE Silent Capture Spring, I barely notice the recoil.

 

[Ellis Gordon]

Another alternative to direct blow back and roller delayed systems is the closed bolt gas piston system used in the Sig MPX K 9mm carbine.

 

[calicojack]

I have zero issues with my blowback AR9. Has a JPE Silent Capture Spring, I barely notice the recoil.

JP Rifles

 

[Worsley]

JP Rifles

This is the way!

 

[calicojack]

This is the way!

Well - time to pop a beer and get caught up on the Mandalorian on Disney+

 

[calicojack]

This is the way!

One other comment - I think you have to take the weight out of the PCC bolt to make the JPE SC work, as well as the buffer spring retaining pin (whatever it's called) - but not a huge deal.

 

[Worsley]

One other comment - I think you have to take the weight out of the PCC bolt to make the JPE SC work, as well as the buffer spring retaining pin (whatever it's called) - but not a huge deal.

I bought the PCC JPE SC.

 

[outrider58]

This is the way:

https://www.gunbroker.com/item/1036138841

Very interesting...

 

[outrider58]

Since we've started back down the AR9 rabbit hole(again), I stumbled across this video...

 

[calicojack]

Since we've started back down the AR9 rabbit hole(again), I stumbled across this video...

I actually did this but have yet to try.

"Gentle Recoil System" For AR9 PCC

I am looking at ways to make my AR9, not so much gentle, but less jumpy and able to stay on target (more for fun than anything else). Some guy (his Blog at blowback9.wordpress.com) came up with this recipe for an AR9 that is supposed to stay on target better (so he claims) than a common AR9...

www.mdshooters.com

 

[calicojack]

And If I don't give a range report it will impact negatively on my character.

 

[Bafflingbs]

Real Colt? IDK but I am sure they ain't cheap. Colt made a bunch of different 9mm's for the commercial market. My understanding is that the Colt 9mm's are popular outside the US for LE and security applications.

I shot a properly setup, full auto, Colt car-9, in the mid 90’s. Damn thing surgical!! Absolutely no kick! You could literally hold steady, wherever you aimed. Coolest gun I ever shot. The MP-5 has nothing on that thing. Which I’ve also shot on full auto.

 

[gmharle]

I have a tuned short stroke blowback pcc and there is no question that the recoil impulse is so much more that my roller delayed JP5. It is just physics. You need a heavy bolt in a blowback and when that weigh gets forced back it is going to raise the muzzle even with a heavy spring. There is just a lot of mass moving backward.

The difference with the roller delayed is the reduced mass and slow speed back on the bolt allows the muzzle to barely move. While the recoil that we are talking is not generally what I would consider massive being 9mm, in a competition setting and keeping the sight on the target with minimal movement, the roller delayed is the way to go.

 

[calicojack]

ROLLER DELAYED SYSTEMS – Maxim Defense

maximdefense.com

Did not realize the roller-delayed blowback is less than $190.
[EDIT] I guess I was thinking of the Scheel system that's $300+ and more complicated.

 

[Magnumite]

That used to be my take. I had a 20" M16 A1 in the Army and could not understand why anyone would want (1) a barrel less than 20", and (2) a pistol caliber instead of 5.56 NATO, both of which diminish the effectiveness of the rifle. But truth is; SBR's with a can are way too much fun. Also, 9mm is a quiet and mild round (even in a blowback) that is cost effective and easy to reload.

I’ll take that under advisement.

 

[calicojack]

So here are some possible paths for recoil systems in an AR style PCC:
1. Standard blowback. Reliable and simple but not ideal for competition. Works well for a range toy. Does not impeded accuracy for slow fire.
2. CMMG Radial-delayed blowback. Works well but expensive. A great alternative for 45ACP since all of the other options seem to be 9mm only. I went this route with my AR45 and love it.
3. CMMG Dissident. Even better than radial-delayed blowback in that there is no buffer tube. Even more expensive. Not really an AR style platform but worth mentioning.
4. Maxim Defense roller-delayed blowback. A popular choice and reasonably priced. Some think this is the best performer next to radial-delayed blowback.
5. JP Enterprises Silent CApture Spring. Another reasonably priced popular choice.
6. Kynshot hydraulic buffer and weight. Yet another reasonably priced popular choice.
7. KAK K-SPEC Enhanced AR15 PCC 9.5 oz Buffer. This is basically a spring-loaded buffer. Very interesting. https://kakindustry.com/k-spec-enhanced-ar15-pcc-9-5-oz-buffer/

 

[smdub]

8. Mean Arms bearing delayed upper.
9. Angstadt Arms roller delayed upper. Uses some MP5 parts. Does not require a buffer tube. (you actually HAVE to remove the tube as a little spring stop plate needs to be put on instead.)