SRU SARB15 M4 Airsoft GBB Bullpup Chassis Kit - OD

In the recent years, there are a variety of GBB manufacturers that have introduced short-stroke solutions for AR / M4 GBBs in the airsoft community, companies like Maple Leaf's Hummingbird Bolt, GBL / Airsoft Monster's Short Bolt, C&C Tac Short Bolt, SRU S.C.S. Bolt and such, developed solutions that allow GBB ARs to be fitted with Picatinny stocks, allowing the installation of telescopic or folding stocks.

However, SRU saw another possibility:

Converting the AR15 into a bullpup rifle.The biggest advantage of a bullpup rifle is that it significantly shortens the overall length of the firearm while maintaining the same barrel length. This brings the center of gravity closer to the operator, greatly enhancing rifle maneuverability. This advantage is particularly evident in close-quarters battle (CQB).

The advantages of the SARB-15 include;

• Exceptional Industrial Design and Ergonomics: SRU kit seamlessly transforms the AR15 into a bullpup rifle, enhancing its futuristic style. Compared to competitors' kits, SRU professional design far surpasses the amateurish, garage-made feel of theirs.
• Exclusive Patented Trigger Linkage Design: SRU rotary lever design reduces the trigger pull weight, allowing the front trigger to be easily replaced with any AR15-standard
• trigger available on the market. (The airsoft version uses a 304 Stainless Steel Stamping Process.)
• Versatility: SRU kit is compatible with any AR15-spec trigger, safety selector and grip, significantly increasing customization options.
• Exclusive Patented Magazine Release Button: Designed for ambidextrous operation, SRU magazine release button offers superior ease of use compared to competitors.
• High Compatibility: SRU kit is adaptable to most AR15 models, offering broad compatibility, whereas competitors' products only fit specific AR15 configurations.
• (This version does not include the SRU Handguard)
  

Features:

• Futuristic Bullpup Design for AR / M4s
• Injection Polymer Molded Bullpup Kit
• Compact, Ergonomic Design
• Centralised Gravity, Greater Maneuverability and Rifle Manipulation
• Short Stroke Bolt System (Requires separate purchase)
• 304 Stainless Steel Trigger Bar Linkage System
• Mil-Spec Fire Selector
• Accessible Lever Mag Release Adapter - Single Motion Sweep Reload
• Two Stage Fire Selector Safety - An External Safety Selector
• 3 Point Connection Mounting
• Cheek Pad / Brass Deflector Design

Compatibility Disclaimer:

• The SARB-15 bullpup chassis kit does not include an AR-15 lower receiver. This kit only supports Mil-Spec style AR-15 lower receivers.
• The SARB-15 bullpup chassis kit does not include an AR-15 upper receiver. This kit supports upper receivers with AR-15 upper receivers that have a short-stroke BCG installed such as Maple Leaf's Hummingbird Bolt, GBL / Airsoft Monster's Short Bolt, C&C Tac Short Bolt, SRU S.C.S. Bolt and such.
• The SARB-15 bullpup chassis kit does not include a short-stroke bolt carrier group, please contact Maple Leaf, Airsoft Monster/GBL, C&C tac or SRU to purchase GBB short bolt system.
• The SARB-15 bullpup chassis trigger linkage system is compatible with single-stage or 2-stage AR-15 trigger sets. However, please note that the trigger must be a curved type and not a flat type.
• The SARB-15 cannot be mounted with the Noveske Ghetto Blaster, as the trigger guard cannot be removed

You can view our other offerings for the SRU SARB-15 series below;

• SRU SARB-15 M4 Airsoft GBB Bullpup Chassis Kit in Black
• SRU SARB-15 M4 Airsoft GBB Bullpup Chassis Kit in Tan
• SRU SARB-15 M4 Airsoft GBB Bullpup Chassis Kit in Olive Drab
• SRU SARB-15 Accessory - Extended Handguard in Black
• SRU SARB-15 Accessory - Vertical Foregrip in Black
• SRU SARB-15 Accessory - Angled Foregrip in Black
• SRU SARB-15 Accessory - Short Cycle Bolt System for Tokyo Marui MWS in Black
• SRU SARB-15 Accessory - M4 Lower Receiver Spare Short Buffer Tube
• SRU SARB-15 Accessory - Spare QD Mount
• SRU SARB-15 Accessory - M4 Bullpup Chassis Gun Stand in Black

For more accessories, check out our Airsoft Accessories page.

Compatibility:

• GHK / VFC AR / M4s
• Tokyo Marui MWS M4 Systems or Similar - Requires the SRU MWS Short Cycling Bolt Kit
• Short Stroked Buffer System such as the Maple Leaf's Hummingbird Bolt, GBL / Airsoft Monster's Short Bolt, C&C Tac Short Bolt, SRU S.C.S. Bolt or similar

Includes:

• x1 SRU SARB - 15 M4 Airsoft GBB Bullpup Chassis Kit in Olive Drab
• x1 SARB - 15 QD Mount (Pre-Installed)
• x1 Fire Selector
• x1 QD Clip End Plate
• x1 Cheek Rest / Brass Deflector
• x1 Spring
• x1 Installation Guide