The B4 SOPMOD CQB, an airsoft version of the M4 MK18 CQB-R rifle, is the compact variant. With the Bolt Recoil system (BRSS) it offers a strong recoil with each shot. Unlike other "blowback" electric rifles in the market that only have caps that move, this system really gives a good impact after each shot, providing greater sense and realism. With a performance of maximum quality.
Not only is the BOLT B4 SOPMOD equipped with its exclusive BRSS recoil system, but it is also equipped with high-end internal components, such as a high-torque motor, precise-gauge internal cannon and a set of steel gears. This M4 AEG has been designed from scratch to be ready for LiPO (11.1V LiPO recommended), and has a response shot and a high rate of fire. This rifle comes equipped with a 4-inch full metal handguard for mounting accessories, Vltor-type stock.