.300 Black out short buffer.

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[ARCHIVED THREAD] - .300 Black out short buffer.

Posted: 12/2/2018 6:32:44 PM EDT

Can anyone steer me where I can buy a short .300 Blk out buffer ? I have searched everywhere I know with no results.

Posted: 12/2/2018 7:15:54 PM EDT

[#1]

.300 blackout uses the same buffer sizes as its 5.56x45mm counterparts. You will not likely find buffers and receiver extensions listed specifically for. 300 BO. It is important that the buffer size is correct for the receiver extension in which it is installed.

I assume that you are looking for a buffer/receiver extension combination that is shorter than the typical carbine length. If so, then look at the 5.56 options. You may wish to vary the weight of the buffer for best functionality, depending on your load, and exact configuration of your upper assembly.

Posted: 12/2/2018 7:25:08 PM EDT

[#2]

The reason I was asking is that my neighbor has two buffers in his 300 blk outs and both are shorter than a std. carbine buffer and one is stamped .300 blk out on the head. He can't remember where he got them but swears that they eliminate all problems.

Posted: 12/2/2018 7:33:24 PM EDT

[#3]

What problems? My 8.2” ran fine with a normal carbine buffer. Now it runs fine on a LWRC UCIW stock kit.

Posted: 12/2/2018 7:51:46 PM EDT

[#4]

Quote History

Quoted:
What problems? My 8.2” ran fine with a normal carbine buffer. Now it runs fine on a LWRC UCIW stock kit.

View Quote

Failure to feed next round after first round fired. Doesn't strip second round at all on one of my pistol build and the other strips the second round but hangs up on the bcg before chambering.

Posted: 12/2/2018 7:56:22 PM EDT

[#5]

What’s your set up? Pistol or carbine gas? Is that happening with subs, supers, or both?

Posted: 12/2/2018 8:12:41 PM EDT

[#6]

Quote History

Quoted:
What’s your set up? Pistol or carbine gas? Is that happening with subs, supers, or both?

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Both are 7" barrel with pistol gas set up. The one not picking up the second round at all is std. carbine spring with H2 buffer. The one catching the second round and hanging on bcg is std. spring and std. buffer. Both do this using std. FMJ brass ammo.

Posted: 12/2/2018 9:21:46 PM EDT

[#7]

Suppressor? I would try a standard carbine buffer instead of the H2. Sounds undergassed IMO. I don’t know about the other one.

ETA: what’s the ejection pattern like?

Posted: 12/2/2018 10:23:43 PM EDT

[#8]

Quote History

Quoted:
Suppressor? I would try a standard carbine buffer instead of the H2. Sounds undergassed IMO. I don’t know about the other one.

ETA: what’s the ejection pattern like?

http://i.imgur.com/wx6HWwG.jpg

View Quote

I was so pissed that they weren't functioning right I didn't even pay attention to the ejection pattern.

Posted: 12/3/2018 9:26:21 AM EDT

[#9]

The .300 BO runs fine with a carbine buffer and spring.

What buffer tube are you using?

Posted: 12/3/2018 6:37:45 PM EDT

[#10]

Quote History

Quoted:
The .300 BO runs fine with a carbine buffer and spring.

What buffer tube are you using?

View Quote

Just basic pistol buffer tube with foam sleeve on both. Brand not known.

Posted: 12/3/2018 7:15:45 PM EDT

[#11]

Starting to wonder if this is what I saw in a .300 black out ? It looks just like it. https://veriforcetactical.com/product/308-ar15-ar10-short-buffer-for-use-with-a-standard-ar15-collapsible-stock/

[ARCHIVED THREAD] - .300 Black out short buffer.

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