Vism M-LOK® & KEYMOD™ PICATINNY Accessory Rail - Short Acetech With it's adjustable hop up

With it's adjustable hop up and 330 FPS with 0

Scope centerline set to 1

flip-up adjustable sights

The threaded muzzle is the HK 3-lug design

They also come with a hook and loop neoprene wrist closure that ensures a secure fit

Vism M-LOK® & KEYMOD™ PICATINNY Accessory Rail - Short Acetech With it's adjustable hop upM LOK & KEYMOD Short length PICATINNY (3 Slot) accessory rail, mounts onto M LOK & KEYMOD Spec. handguards. Short rail covers 1 M LOK slots or 3 KEYMOD slots. Mounts with two custom designed T nut screws that are M LOK & KEYMOD compatible. Bottom of the accessory rail has custom machined lugs to lock the accessory rail from moving forward or aft on the M LOK & KEYMOD slots. Tapered profile PICATINNY rail ends for a more comfortable hold when used as a