Cmmg Piston Conversn Drop Indmg

CLAMP-ON CARBINE LENGTH PISTON CONVERSION .750 BARREL
•Replaces front sight base handguard cap handguards & bolt carrier on any gas operated AR-15 style upper   •Piston is hard chrome plated & removable from front of gas block   •1-piece bolt carrier has integral impingement key for max. strength   •Gas block has On/Off setting for use w/suppressor   •Remove piston & set gas system to Off for use w/.22 conversion system    •For use on any AR-15 or M-16 w/any caliber & barrel length w/carbine gas system