Couple of 9mm SBR Completed


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RCArms.com
June 4, 2011, 12:13 AM
http://img.photobucket.com/albums/0603/ddr223/personal/9mm%20SBR/P1250748.jpg

RRA 10.5" Magpul MOE stock and handguard.


Second upper:
http://img.photobucket.com/albums/0603/ddr223/personal/RRA%209mm%207-inch%20SBR%20upper%20MBUS%20Sights/P1250785.jpg

RRA 7" slicked barrel, Magpul MBUS sights. Sweet handling little SBR that digests anything it's fed except JHP rounds. Fairly light too.

Don

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wally
June 4, 2011, 01:01 AM
digests anything it's fed except JHP rounds

Other than THAT, Mrs Lincoln, how'd you enjoy the play?

RCArms.com
June 4, 2011, 06:11 PM
My JPH pet load is a tad short OAL for the feed ramp on this carbine. If I decrease the seat depth towards the top end of acceptable specs, it would be just fine.

As I don't use anything but FMJ rounds in it anyway, its not a big deal for me.

Don

wally
June 4, 2011, 07:40 PM
Is that a dedicated 9mm lower, or did you use a 9mm adapter block in a standard lower. I plan on sending in the forms to do an AR SBR next week.


If its a 9mm block, which brand?

Does it feed factory 9mm JHP -- things like Winchester SXT or Gold Dots?

RCArms.com
June 5, 2011, 02:20 PM
Is that a dedicated 9mm lower, or did you use a 9mm adapter block in a standard lower. I plan on sending in the forms to do an AR SBR next week.


If its a 9mm block, which brand?

Does it feed factory 9mm JHP -- things like Winchester SXT or Gold Dots?
It's a .223 receiver with a RRA adapter. I like the ability to use the Colt or modified Uzi mags over the Sten Mag based Olympic upper.

I have done no JPH testing other than some of my personal 115G JPH loads. My guess is that a 124g or 147g JPH which is a bit longer seated close to max Cart OAL would stand a better chance of function.

Don

InkEd
June 6, 2011, 10:32 AM
Pretty nice rifles. Only thing I would change is the grip. I just can't stand the standard AR grip. Magpul makes a nice one without the finger bump.

RCArms.com
June 18, 2011, 02:10 AM
Pretty nice rifles. Only thing I would change is the grip. I just can't stand the standard AR grip. Magpul makes a nice one without the finger bump.
I'm partial to the standard A2 grip. Haven't found any others that I am comfortable with.

bikerdoc
June 18, 2011, 10:31 AM
I am a huge fan of 9mm carbines.

That is nice, How much time and work did it take?

RCArms.com
July 2, 2011, 03:33 PM
Longest lead time item was the RRA upper. 5 months on that one.

Other than that, simply pushing the pins on my properly registered SBR and installing a 9mm hammer, mag block, buffer, and the upper.

Once all the parts were in my hands, the conversion took about 4 minutes.

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