CYMA CGS Type-S High Speed Steel Bolt Carrier Set for Marui MWS M4 GBB Recoil Springs & Assembly The HS510C Open Reflex Circle

The HS510C Open Reflex Circle Dot Sight has an open frame for a wide sight picture

using the USB-Link and the GATE Control Station™ computer App

modification of mounting screws

Fits most but not all M4 and M16 series airsoft guns

Introduced in the 1960s

CYMA CGS Type-S High Speed Steel Bolt Carrier Set for Marui MWS M4 GBB Recoil Springs & Assembly The HS510C Open Reflex CircleManufacturer: CYMA CGS SKU : CGS SY 0003 Machined steel bolt carrier High speed version 17 20 RPS approx. Roller bolt end Complete Type S M4 style bolt carrier with loading nozzle Fit RS spec buffer tube inner diameter 25. 5mm For Tokyo Marui MWS AR M4 gas blowback rifle airsoft