Guns Modify Aluminum 7003T6 CNC Speed Zero Bolt Carrier for Tokyo Marui M4 MWS - Blue Magazine Cap P-Process Surface Finish Technology A

P-Process Surface Finish Technology  A bit shorter than the Marui original one

Ready to go for 380FPS out from the box

The Agency Arms Legacy (aka Bonesaw for real steel) pistol takes customization to a whole different level

SKU GE-03-44 Major Color Other Built Material S303 Stainless Steel/Brass/Polycarbonate/Aluminum/Acetal Package Includes Stainless Cylinder Head / Air Seal Nozzle / Polycarbonate Ventilation Piston Head / Super Lucid Chromium Plating Cylinder / Polycarbonate Piston Manufacturer Guarder Hop-up N/A Shooting Mode N/A Gearbox Type N/A Fit Battery Pack N/A Bullet Type N/A Pistol Power Source N/A

G&P Full Metal Custom M4 Series based on WA M4 Gas Blow Back Rifle  WA internal parts with all possible METAL upgrade from G&P such as Hop-up chamber set  Crispy Metal Sounds & Smoother slide cycling  Upgrade Include:  -WA SR15 URX E3 Metal Body (WP73)  -WA SR16 URX Front Set (Short) (WP85)  -WA M4 Commando Steel Outer Barrel (WP18)  -WA M4A1 Spare Magazine (50rds)  -Knight's Type Front Sight (GP555)  -Military 600m Flip Up Rear Sight (GP254)  -WA M16A2 Grip (Black) (WP44B)  -WA Extended Stock QD Sling Mount (WP55)  -WA M4A1 6 Position Sliding Buttstock (Black) (WP61B)  -WA Hammer Set (WP11)  -WA Knight's Type Trigger Guard (WP66)  -WA M4 Steel Sear (WP33)  -WA M4 Bearing Hammer Pin Set (WP34)  -WA Steel Bolt Stop (WP51)  -WA SPR Type Cocking Handle (WP52)  -WA M4 Hammer Lock (WP57)  -WA Steel Magazine Catch (WP65)  -WA Steel Selector (WP69)  -WA Steel Forward Assist (WP76)  -WA M4 Aluminum Buffer (WP81A)  -RIS Grip (Black) (GP033)  -RIS Rail Cover (Black) x 2 (GP032B)  -30mm Reflex Extension Mount  -Military Type 30mm Red Dot Sight (GP121)  Aluminum Made 14mm Clockwise barrel extension tube  Sling mount can be installed with any single

Guns Modify Aluminum 7003T6 CNC Speed Zero Bolt Carrier for Tokyo Marui M4 MWS - Blue Magazine Cap P-Process Surface Finish Technology AThe bolt carrier is an essential part any M4 GBBR out there its what drives the BB to come out the other end of the barrel. In a real gun its almost the same and depending on the weight it will affect how the AR will perform. Guns modify is known for constructing quality airsoft parts in the market and have been around for a while so they know how and what airsofters want in their guns. They are a Hong Kong based company and you can be rest assured