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Site News BREAKING RAREBREAD X ATRIUS// ROBERT CICADA TAKES A STANCE ON SUPPRESSORS
7/12/2026 4:58:42 PM EDT
What is the factory acceptable play in the hammer/trigger pins in an ar15?  Tolerance in the trigger and  disconnector and receiver.  Tolerance in the hammer and receiver.
7/12/2026 7:24:51 PM EDT
[Last Edit: M4BlackRifle][Edited] [#1]
Standard mil-spec pins should measure 0.1535-0.1540  The pin hole in the anodized receiver should measure .1555 +/-.0015

Oversize pins and anti-walk/anti-rotation pins are not expensive.
7/13/2026 7:06:17 PM EDT
[#2]
I should have said this is for a colt LG pin receiver.  .170.  Thanks for the info.

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