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I know this has been discussed a thousand times but can anyone tell me what buffer I need and what tube.  I have a factory DPMS lr308 carbine I would like a heavier buffer to slow the bolt down a little.  Thanks

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If it is a factory DPMS rifle, it probably has a AR15 length buffer tube.  You should measure the internal depth of it to be sure.  A good place to go is heavybuffers.com.  He will let you know what you need.

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If it's cycling too fast, just get the KAK heavy buffer.  It comes in at 5.3oz, over that 3.8oz buffer that DPMS gave you.

This one:

https://www.kakindustry.com/lr308-carbine-buffer-heavy

According to @survivalshop, the DPMS factory system is good to go - stock 7.000" internal-depth extension, with the real DPMS LR-308 Carbine spring, and the 3.8oz real DPMS 2.500" buffer.  If that thing is cycling too fast, that KAK heavy buffer will slow it down.

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