BCM Intermediate Receiver Extension A5

[GOST]

Unlike the Vltor A5 this booger has 8 positions.

http://cdn3.volusion.com/j4enh.r2en5/v/vspfiles/photos/BCM-INTERMEDIATE-RE-3T.jpg

http://cdn3.volusion.com/j4enh.r2en5/v/vspfiles/photos/BCM-INTERMEDIATE-RE-2T.jpg

http://www.bravocompanyusa.com/BCM-Intermediate-Receiver-Extension-A5-Buffer-Tub-p/bcm-intermediate-re.htm

[DutyUse]

Awesome! Always wanted to to try the A5 system. I might end up with this on the Noveske build

[DutyUse]

Anyone try one of these? Will any stock work?

Using decent ammo I shouldn't have any problems on a BCM 14.5 middy?


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[din]

Any stock that takes a standard mil-spec diameter receiver extension will work with an A5 RE, but at least on the Vltor units, stocks with a short overall length won' t collapse far enough to fit flush with the lower. The Vltor Emod at least is long enough, but my B5 SOPMOD doesn't close past the second position (not that I ever collapse mine all the way anyway). I was under the impression that the BCM A5 tubes with the extra position will allow full closure of shorter stocks, but I might be smoking crack since I can't remember where I saw that. I'm still waiting for the one from V7 to drop, but if it doesn't happen by the time I get a stamp I'll probably try out the new BCM model.

As long as your rifle runs well in its current configuration you won't have any problems with an A5. A LOT has been written about the A5 over on M4C if you want to do some research.

[SINNER]

The A5 basically runs the same as a rifle system buffer without the additional length. They are much more forgiving as to the upper being used than most buffer/spring combinations. The only time I have had any issues with the A5 is with exactly what DutyUse is asking about. My VLTOR A5 had issues with a 14.5" middy Daniel Defense barrel'ed set up. Ejection pattern was erratic and almost never locked back on a empty mag. I find that most DD barrels are slightly over-gassed due to larger than most gas ports. I would expect similar or worse results on other manufacturers barrels.

[GOST]

Anyone try one of these? Will any stock work?

Using decent ammo I shouldn't have any problems on a BCM 14.5 middy?


Sent from my iPhone using Tapatalk


The A5 basically runs the same as a rifle system buffer without the additional length. They are much more forgiving as to the upper being used than most buffer/spring combinations. The only time I have had any issues with the A5 is with exactly what DutyUse is asking about. My VLTOR A5 had issues with a 14.5" middy Daniel Defense barrel'ed set up. Ejection pattern was erratic and almost never locked back on a empty mag. I find that most DD barrels are slightly over-gassed due to larger than most gas ports. I would expect similar or worse results on other manufacturers barrels.

I agree with what SINNER says. My BCM mid-length has a smaller gas port and will not lock back with some lower pressure ammo. It's on a rifle with a carbine length receiver extension and H buffer.

[DutyUse]

Okay, thanks guys.

Will a 16" noveske mid length run into the same problems? Can't I always fine tune it with buffer & spring weight combos? Or am I better off sticking with a regular carbine buffer system? Sorry not very familiar with the A5 system but would like to try it out.

[SINNER]

16" mid length and 18" rifle lengths run just fine on it.