9mm buffer/spring questions

AR/M4 AR Pistols & Pistol Caliber ARs
21

If you are going to us a standard 9mm buffer, you will need to use a spacer with it: http://www.gandrtactical.com/cgi-bin/commerce.cgi?preadd=action&key=SP400211

The VLTOR/BCM A5 system works well as the A5 buffer is the same length as a standard buffer and the spacer! We use the SpringCO “green” spring for the A5 system in our 9mm builds.

C4

22

Thanks Grant. Five bucks is a great price for the spacer. I’ve used quarters before but the spacer is a better idea. Do you use a Green Spring Co Carbine or A5 Spring with the A5 buffer?

Do you have the BCM KMR rail covers? I didn’t see them in your web site. I’d like to get them with the spacer.

I found them.
http://www.gandrtactical.com/cgi-bin/commerce.cgi?preadd=action&key=KMRPP-BCM

23

Green rifle spring and A5 buffer in a standard carbine RE, correct?

24

He is definitely talking about a carbine RE. I first used a V5 A5 intermediate RE and the Voltor A5 standard buffer and it didn’t work. I added six or seven quarters, can’t remember, and it worked.

I was wrong. Grant was using an A5 RE. I used the A5 buffer and rifle spring in a carbine RE. It worked well for me.

25

Thanks

26

I will try the Voltor A5 buffer and the rifle spring that came with it at the range tomorrow. I will also try the ST9-X and Coltor with the standard spring.

27

Now I want to go shooting but I can’t today! The rifle spring and A5 went into the carbine buffer fine. It’s now mocking me. Teasing me because I have to work all day! :sarcastic:

28

I use the A5 Green buffer spring with the A5 receiver extension and A5 buffer. You could probably use this A5 spring and A5 buffer in a standard CAR receiver extension, but I have not tested that setup yet. Probably the more optimal setup would be the A5 buffer (heaviest one made) with a SpringCO red or blue CS CAR spring.

C4

29

Thanks Grant. I will order some extra springs. I’m sure I will have to tweak it again when I get the suppressor on the gun.

30

Thanks for the tip. That worked for me today! I also used the rifle buffer spring that came with the A5 buffer. It worked slick semi and FA.

31

I decided to go with a Blitzkreig Hydrolic buffer and JP 10 spring for my current build to circumvent any possible issues related to the buffer. I havent shot it yet and just waiting on my stamp now.


32

I’m using a rifle length Action Spring and a RRA 9mm Buffer, with a home made buffer spacer similar to the the Spikes. It ran alright without the spacer, but it did break a hammer pin. So I pit the spacer in to see if it made any difference. So far no difference, but I do have extra pins and a KNS pin set, just in case.

33

I just put a Colt 9mm buffer and Colt spacer into my 9mm pistol. I hope to try it tomorrow. The BCM carbine spring, Colt buffer & spacer were purchased from G&R. I wanted a Wolf extra power carbine spring but didn’t see one in stock.