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Old 04-02-2011, 21:20   #1
old wanderer
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Join Date: Dec 2008
Posts: 240
Pneumatic buffer vs spring

For many years I used a pneumatic unit instead of a spring behind the bolt of my HP AR15 I shot in competition. I also had a Tubbs weight in the back of the bolt. Both worked very smoothly. I quit shooting HP and LR about 6 years ago.

I went and fired at a range and had problems getting the bolt returning to battery. Checked the pneumatic buffer, and found it no longer had any pressure.

I am now shooting CQB in a AR15 with a A1 stock. I just finished a 2 day course where I ran through 1000 rounds. Boy did I find the squeak squeak squeak of that spring in the stock irritating.

I am shooting a LMT 14.5" upper with a SJC compensator, so it is pretty steady.

Do these units have a short life? (If so how long)

Is there any advantage to using one of these units vs the squeaky spring?

My old unit was adjustable, but there is no way I can see to recharge it.

Are there any a
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Old 04-05-2011, 18:51   #2
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Everyone I know that has tried the hyd buffers has had one go bad, no one I know uses a hyd buffer now. For carbine courses and 3 gun many use a SSS or Tactical Springs extra power spring, lubed.
The 6.8 is the fastest growing cartridge and #1 choice for hunting deer and hogs with an AR15.

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