The JMK Vertical Foregrip is a CNC machined walnut grip that attaches to your choice of A3 Tactical mount. There are multiple A3 configurations that feature a radiused profile. The mount tapers to meet the mounting surface on the handguard, giving a low-profile feel with ergonomic comfort. Twin mounting screws ensure a secure attachment to ensure a rigid mount on your firearm.The A3 Tactical mount equipped with the JMK Vertical Foregrip is developed for both M-Lok and Picatinny handguards and is the perfect fore grip for your lightweight rifle, carbine, or Sub-gun.JMK grips come in a textured honeycomb pattern as well as a grooved pattern. All foregrips are made with a heavy duty threaded insert for attaching to the A3 Tactical mounts. The vertical foregrips are CNC machined and then hand sanded, stained with a dye to ensure uniform color and then finished with a catalyzed satin finish.All JMK wood components are proudly made in the USA.Features: Solid machined aluminum construction Heavy-duty 5/16" main stud Picatinny version only uses 2 slots and 1-1/8" of rail space M-LOK version only requires a single M-LOK slot and 1-5/16" of rail space