Umarex SD4 Silenziatore

The versatile long gun suppressor SD4 is suitable for air guns with a caliber up to 6.35 mm (.25). Especially at higher energies, the SD4 achieves a high sound-damping effect thanks to its 6-chamber design and a precisely CNC-machined aluminum housing, reducing noise by 25 dB. But even in combination with air guns in calibers 4.5 mm (.177) and 5.5 mm (.22), a noticeable difference can be heard. To maximize compatibility, the Umarex SD4 is delivered with two thread adapters (14 mm left and ½“-20 UNF).