Home AR-15 How to Adjust AR15 Buffer Weight | Palmetto State Armory

How to Adjust AR15 Buffer Weight | Palmetto State Armory

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Adjusting or changing your buffer spring or buffer weight is necessary when experimenting with ammo types or different length barrels and gas systems. While there are lots of variables to consider, this video will give a generalization of what you might need to tune your AR system.

DISCLAIMER: All firearms presented in this video are in compliance with federal, state, and local laws.

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23 COMMENTS

  1. I recently ordered a Q Sugar Weasel 556 with 13” barrel. I will run it suppressed 85% of the time using 223 PMC 55 gr FMJ ammo for target practice and would like a recommendation on which plug to start testing. I hope to receive the rifle next week. I am a 78 year old retired Chief of Police who also spent 21 years in the USA Army. I still carry and shoot almost weekly – looking to reduce recoil without impacting light strikes or failure to eject issues. Any suggestion is appreciated.

  2. Bought your guys 8.5 inch mlock hex rail 300blk with har15 pistol brace. Its an absolute tack driver it will put 220 grain subs through the same hole at 100 yards every time, but with supers its a bit of a snappy recoil impulse more like an AK than ar15 so I just ordered 3 tungsten weights to tune my buffer

  3. Anyone else try different buffer weights and springs with a KS-47? My rifle seems extremely gritty and stiff to charge. Would switching to an AR-15 spring from an AR-10 spring help with that without compromising reliability? And if I were to go with an AR-15 spring would I need a heavier weight than the h1 buffer the rifles come with from the factory?

  4. I’ve been having lots of jams and overgassing with a 7.5 inch .308 I built. It had a fixed gas block so I went and got an adjustable gas block put on. I’m still having this issue I have a stock psa pa10 lower receiver. What buffer and spring would help with this. Can anybody help me?

  5. I built a 10.5" 300 blackout and with the suppressor it was throwing all my valuable brass out into the range… Can't have that.. I had installed an adjustable gas block when it was convenient but my handguard choice makes this hard to get to. I put an H3 buffer and it cured my sad loss of my brass.. Nice 3:30 ejection pattern and so easy to swap out if you go unsupressed.

  6. Doubt Ill get a response but I have a 7.5in barrel ar15 with a pistol buffer tube and want to add a regular 6 position buffer tube. Would I need to buy a new spring and buffer? Or could I get away with just buying a new tube? If not what sized buffer should I get for this sized firearm?

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