The MCX all began with the need for a compact 300BLK platform. The 6 3/4 Tacops is just that. With all the modularity of the MCX Virtus and a suppressor designed barrel the MCX Tacops is set up to be the most compact version of the MCX Virtus system. Featuring a 2 stage Matchlite Trigger hammer forged 6 3/4 barrel folding PCB brace and inert training device that sets the TACOPs up to be easily suppressed. - OPERATING SYSTEM: Gas Piston - ACTION TYPE: Semi-Auto - CALIBER: 300 Blk - BARREL MATERIAL: Carbon Steel - TRIGGER TYPE: 2-Stage Match - FOREND TYPE: Alloy - GRIP TYPE: Polymer - RECEIVER FINISH: Hard Coat Anodized - OVERALL LENGTH: 27.5 in (723 mm) - OVERALL WIDTH: 2.5 in (63.5 mm) - HEIGHT: 8 in (203 mm) - BARREL LENGTH: 6.75 in (171 mm) - THREADS: 5/8 in - 24 tpi - ACCESSORY RAIL: M-LOK - WEIGHT: 8 lbs (4 kg) - TWIST RATE: 1:5 - MAGS INCLUDED: (3) 30rd Polymer Mag - MAG TYPE: AR-15