SP System T8 MWS M4 Basic Platform GBB Blank Version ( Without Magazine ) ( T8 TM MWS GBB Platform ) Upper JDG: 60x52mm

JDG: 60x52mm

- Fit For NEW and OLD Generation GHK M4 GBBR Series

Bow Master S Style Tactical Trigger Sliver For APS 870 ( M870 )

Crisp Gas Blowback Action: Delivers a satisfying

SP System T8 MWS M4 Basic Platform GBB Blank Version ( Without Magazine ) ( T8 TM MWS GBB Platform ) Upper JDG: 60x52mmFeatures: Basic Platform ( Blank Version ) Suitable for M4 Style MWS GBBR Enthusiast Steel Front & Rear Receiver Pin Steel Mag Release Steel Bolt Release Steel Trigger & Trigger Box Internal Parts Steel Castle Buffer Tube Nut Steel Bolt Carrier Steel Gas Tube Steel Flash Hider ( 14mm CCW ) Steel Forward Assist Button Metal Grey Aluminum Outer Barrel Polymer 556 Marking Dust Cover Enhanced Recoil Spring Hard Kick Buffer Adjustable Trigger & Hammer SP