the Battery Extension Unit (BEU) is designed specifically to relieve all stresses on the ARP9's components

Standard Arcturus M4 lower receiver

Tactical under rail attaches flashlights and lasers

Manufacturer: JG

For added accuracy

Airsoft Masterpiece EDGE O2 Aluminum Magwell for Hi-CAPA mock suppressor the Battery Extension Unit (BEU)Airsoft Masterpiece EDGE M1 Aluminum Magwell for Hi CAPA (Black) Perfect addition to your custom built hicapa . Fits on a TM 5. 1 and 4. 3 SPECIFICATIONS: BRAND: AIRSOFT MASTERPIECE BUILD: ALUMINUM WEIGHT: 1 OZ COLOR: BLACK PACKAGE INCLUDES: 1X MAGAZINE WELL Compatible with all TM hicapa models. Fits SOME other hicapa models. Fitment is not guaranteed.