CYMA CGS Type-S Super High Speed Steel Bolt Carrier Set for Marui MWS M4 GBB Knee Pad Some models are equipped with

Some models are equipped with metal rail systems that allow users to fully customize their weapon to suit their needs and accomplish their mission more effectively

and a crisp breaking point

Cylinder: Brass

the more BB's the grenade can fire

CYMA CGS Type-S Super High Speed Steel Bolt Carrier Set for Marui MWS M4 GBB Knee Pad Some models are equipped withManufacturer: CYMA CGS Umarex SKU : CGS SY 0002 Machined steel bolt carrier Super high speed version 20 22 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