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Page AR-15 » AR Piston Systems
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Posted: 11/1/2023 1:39:16 AM EDT
Plan on buying two uppers and doing a P/W job using FCS 6315KM devices. What spring/buffer weight combo should I run for suppressed and unsuppressed use?
Link Posted: 11/1/2023 11:36:36 AM EDT
[#1]
Mine came with H2 buffers. Runs great with Dead Air Sandman S and K. Gas block position 3 for S and position 2 for K or unsuppressed.  Position 1 for adverse condition or weakest steel-cased ammo.
Link Posted: 11/2/2023 1:50:04 AM EDT
[#2]
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Originally Posted By crosseyeshooter:
Mine came with H2 buffers. Runs great with Dead Air Sandman S and K. Gas block position 3 for S and position 2 for K or unsuppressed.  Position 1 for adverse condition or weakest steel-cased ammo.
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Thank you!
Link Posted: 11/2/2023 4:17:58 PM EDT
[#3]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By crosseyeshooter:
Mine came with H2 buffers. Runs great with Dead Air Sandman S and K. Gas block position 3 for S and position 2 for K or unsuppressed.  Position 1 for adverse condition or weakest steel-cased ammo.
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This.

I'm running both of my PWS uppers with the standard PWS H2 buffers and their tubes.  I believe both might have blue sprinco springs though.
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