Classic Army MWS Replacement Bolt Carrier Group w/ Loading Nozzle for Tokyo Marui M4 MWS GBBR - GBBP004M

The Classic Army MWS Replacement Bolt Carrier Group is a complete replacement bolt assembly designed for Classic Army and Tokyo Marui-spec M4 MWS gas blowback rifles. Supplied with the loading nozzle installed, the assembly provides a convenient replacement solution for servicing a worn or damaged MWS bolt system without rebuilding the original bolt carrier one component at a time.

The bolt carrier uses durable metal construction designed to withstand the repeated cycling and recoil forces generated during gas blowback operation. The included loading nozzle handles BB loading and gas delivery during each firing cycle, creating a more complete replacement assembly for maintenance, repair, or spare upper receiver builds.

During operation, the bolt carrier group cycles rearward under gas pressure to operate the rifle's blowback action before returning forward to chamber the next BB. Proper alignment between the bolt carrier, loading nozzle, hop-up chamber, and magazine gas route is essential for reliable cycling and consistent gas delivery.

The Classic Army MWS Bolt Carrier Group is designed around the Tokyo Marui MWS / ZET System and is compatible with Classic Army MWS rifles, Tokyo Marui M4 MWS rifles, and many other TM-spec MWS-pattern gas blowback rifles. Its complete configuration makes it especially useful as a replacement for a damaged factory bolt or as a ready-to-install spare for players who regularly maintain their MWS GBBR.

Features

• Complete replacement bolt carrier group for MWS gas blowback rifles
• Designed for Classic Army and Tokyo Marui-spec M4 MWS platforms
• Durable metal bolt carrier construction
• Loading nozzle assembly included
• Provides a more complete replacement than a bare bolt carrier
• Designed for smooth cycling and proper internal alignment
• Replaces worn, damaged, or malfunctioning factory bolt components
• Suitable for repair, maintenance, spare upper receiver builds, or replacement use
• Compatible with Tokyo Marui M4 MWS / ZET System rifles
• Direct replacement design for compatible MWS platforms
• Genuine Classic Army replacement component

Key Specifications & Details

Product Information

• Manufacturer: Classic Army
• Manufacturer SKU: GBBP004M
• Alternate Inventory SKU: CAGBBP004M
• Product Type: Replacement Bolt Carrier Group / BCG
• Platform: M4 MWS Gas Blowback Rifle / GBBR
• Bolt Carrier Construction: Metal
• Loading Nozzle: Included
• Approximate Length: 180mm
• Weight: Approximately 223g (7.87 oz)
• Color: Black

Compatibility

• Primary Compatibility: Classic Army MWS and Tokyo Marui M4 MWS GBBR Series
• System: Tokyo Marui MWS / ZET System
• Application: Replacement bolt carrier group with loading nozzle

What's Included

• Classic Army MWS Metal Bolt Carrier Group
• Loading Nozzle Assembly

Internal gas blowback parts should be installed by someone familiar with the MWS system. Compatibility and fitment may vary with aftermarket receivers, hop-up units, buffers, magazines, and other non-standard MWS components.