
SPRGFLD ECHELON 4.0C 9MM 4″ 15RD BLK
February 5, 2026
BRN 0183554002 C 825 GC TR ADJ,12-2.75,32 DS
February 5, 2026SCO PISTON M16X1 LH
$75.65
SCO PISTON M16X1 LH
19 in stock
SilencerCo pistons are designed for easy replacement to fit different host firearms or calibers. They are made from 17-4 stainless steel and heat-treated for maximum durability. The piston is part of the Nielson device, which moves to enable semi-automatic cycling and unlock pistol barrels. Use a Fixed Barrel Spacer for fixed barrel setups. SilencerCo pistons feature female threading that connects to SilencerCo threaded barrels.
| UPC | 817272010183 |
|---|---|
| Manufacturer | Silencer Co |
| Manufacturer Part Number | AC28 |
| Model | Osprey/Octane |
| Thread Pattern | M16x1 LH |
| Product Type | Silencer Piston |
| Length | 2.1 |
| Package Height | 1.0 |
| Package Width | 4.6 |
| Shipping Weight | 0.08 |
| Caliber/Gauge | .45 ACP |


