Posted: 6/25/2009 8:25:11 PM EDT
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Is there any point in using an adjustable gasblock for a 20" AR-15 with a can on it?
On a rifle length gas system with a can is this just a solution looking for a problem? The main reason I ask here is I know many of us HTF guys have cans and all kinds of different builds. 
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I have had no problems on my rigs with cans on them - even with heavy match loads, which I shoot just about exclusively.
I think if you really want to go crazy to increase brass life, etc - you'd be better off with a carrier weight system. They do work and work very well..... |
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Unless the gas block had adjustable settings like the Noveske Switchblock I don't really see a benefit unless the gun will be suppressed full time and yo set it and leave it but then the gun won't run without the can.
I have an Adams Arms piston upper and the gas block has a full gas,60% gas and an off setting. I like the 60% setting as it really calms the gun down with a can. The off position is cool to. It really quiets the gun down. |
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Carrier Weight System? Tell me more. Tubb Carrier Weight System |
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Carrier Weight System? Tell me more. A few high power shooters are known to weight the carrier, run a heavier buffer spring and heavy buffer to slow the action down and keeping it from unlocking early with hot loads. That way they can push a 223 bullet somewhere around 3,000 feet per second, and try to get their bullet on target just as fast as they can so the wind doesnt have a chance to mess with it. |
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Carrier Weight System? Tell me more. A few high power shooters are known to weight the carrier, run a heavier buffer spring and heavy buffer to slow the action down and keeping it from unlocking early with hot loads. That way they can push a 223 bullet somewhere around 3,000 feet per second, and try to get their bullet on target just as fast as they can so the wind doesnt have a chance to mess with it. You ain't pushing them that fast with the heavier bullets, maybe with the lighter match bullets for short range stuff. The idea is to keep the bolt locked longer to allow the pressure to come down slightly before unlocking. The result is you can push them a little harder without getting pressure signs, better brass life and when using a suppressor - the action isn't working so hard. |
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Are all ya'll using heavier buffers in your suppressed guns? Im running an H2 in my rifle and a heavy buffer spring. Wont cycle with wolf unless its suppressed. Right now the rifles I'm shooting suppressed or not all run fine, regardless of what ammo I've shot. I like it that way, as I know I have reliable setups. However, I don't want to cause premature wear or other problems. So if I choose to con't running the standard buffer/ spring, what do I need to be aware of and keep an eye on? I do shoot wolf. Suppressed and unsuppressed out of 16". Only unsuppressed out of my 10.5". Suppressed 10.5" only gets brass cased mil spec. |