Description
The SilencerCo SCO Piston M13.5×1 LH XL is engineered for seamless compatibility across various host firearms and calibers. Crafted from durable 17-4 stainless steel and heat-treated for enhanced longevity, this piston is an essential part of the Nielson device, facilitating semi-automatic cycling and unlocking pistol barrels. For fixed barrel applications, a Fixed Barrel Spacer can be conveniently added. Designed with female threading, it easily connects to SilencerCo threaded barrels, making it a versatile choice for firearm enthusiasts looking to optimize their shooting experience.


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