DB M4 7″ Poly

New series of DBOYS is equipped with GEN2 metal gearbox with 8mm bushings to less stress the mechanics and 1.5J spring.
This replica comes with a 300BBs metal magazine

Features:
– Sturdy and lightweight metal handguard and polymer body
– RIS rails on the upper and MLOK sides/buttom of handguard for mounting optics and accessories
– Adjustable stock for maximum stability
– Flip-up rear sights
– Quick spring change (by stock tube removal)
– cqb spring included