Have a pair of gently used SiCo pistons. Both have seen less than 200 rounds of usage. No longer own the suppressors so I have no use for them now. 

AC59 - 1/2x28 XL 

AC25 - 1/2x28 standard 

I have used these with the Spectre9 and Osprey 9 - check your suppressors compatability before buying these.

$70 each or $130 for the pair

must be picked up around the Gallatin area or I am happy to ship via UPS/USPS Priority at your expense. 

No trades needed.