Description
These 17-4 H900 booster pistons are for ECCO Machine booster assemblies and pistol suppressors. They are also compatible with SilencerCo & Rugged.
1/2-28 and 5/8-24 pistons are through-threaded, all others have a muzzle register at a depth of .435″/11mm.
Additional information
Piston Thread Pattern | .578-28, 1/2-28, 5/8-24, 9/16-24, M13.5x1LH, M14x1RH, M16x1LH, M16x1RH |
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