M249 GBBR SPEEDPP Aggressive TSP texture (Trapezoidal Surface

Aggressive TSP texture (Trapezoidal Surface Projections) for positive weapon control in all environment

Direct interchangeable to use as KeyMod and MLOK hand stop

The Hopup Chamber EVO unit is built with a Precision Aluminum Rotary Dial Knob for fine hopup adjustments and equipped with 4mm Flat Soft Bucking Nub (6mm Bucking Nub is optional) to perform best with R-Hop and Standard-Hop to keep the BB shooting accurately and consistently on every single shot

Fits 20mm Picatinny Rail

Tracer Dimensions: 3

M249 GBBR SPEEDPP Aggressive TSP texture (Trapezoidal SurfaceFeatures The world's FIRST practical gas blowback machine gun, fully licensed by FN Herstal! Ultra lightweight, durable aluminum alloy construction Brand new independent gas and BB supply systems design Choose between the massive box magazine reservoir (sold separately) or the lighter weight, smaller STANAG style magazine Realistic open bolt firing operation just like the real M249 Equipped with a "vibrating" system to make the ammo belt shake for