Echo 1 MK1 SR 556 6.75" Quick Detach Suppressor Tracer Units/Barrel Extentions 177 Cal Airgun This 177

177 Cal Airgun This 177 caliber Colt M45 CQBP with blowback is a variation of the 1911 Rail Gun that's enlisted by the U

Description: C

Interior 52" X 10

FRONT SIGHTS Fixed REAR SIGHTS Elevation OVERALL LENGTH 24

designed to fit Airsoft M16's/M4's/HK416's

Echo 1 MK1 SR 556 6.75" Quick Detach Suppressor Tracer Units/Barrel Extentions 177 Cal Airgun This 177Echo 1 MK1 SR 556 6. 75" Quick Detach Suppressor MadBull has partnered with Echo1 to bring to you Echo1s MK1 SR 5. 56 Quick Detach Barrel Extension. The MK1 is a unique barrel extension because of its quick detach feature. This allows you to attach or remove the barrel extension in one simple step. The MK1 package comes with the barrel extension and flash hider specially designed for quick detach function. There are 3 lengths of barrel extensions. The