APFG XM7 GBBR PK331 It features a durable polymer

It features a durable polymer body

Available in long or short and the below RPM

eliminating the risk of spilled BBs

The MTR16 uses the Tokyo Marui ZET System as seen in the MWS line of GBBRs

Pistol-Optimized Optics: 13mm F0

APFG XM7 GBBR PK331 It features a durable polymerSpecifications: Length: 830 880mm (Stock Retractable) Weight: 3260g (With empty magazine) Magazine Capacity: 22 Rounds Bullet: 6mm BB Material: Aluminum, Steel, Alloy, Nylon, Rubber HOP UP: Yes, Quick Adjustable Inner Barrel: 300mm Blowback : Yes Firing Modes: Semi Auto Full Auto Safety Power Source: AIRSOFT Green Gas Features: SPEAR XM7 Style. US ARMY NGSW style. FDE colortone appearance. M LOK rail handguard. Quick adjust HOP UP system. Steel flash