A3 Industries +10 Degree M-LOK Mini Modular Vertical Foregrip - 3in Textured Grip Black. Its modular two-piece design supports four interchangeable grip bodies and is offered in both Picatinny and M-LOK versions. Each grip is machined from 6061 aluminum with a low-gloss black anodized finish and secured using a heavy-duty 5/16'' main stud. The Picatinny model occupies only 2 rail slots (1-1/8'' of space) while the M-LOK version mounts using one slot and 1-5/16'' of space. made in specialized factories. Specifications for A3 Industries +10 Degree M-LOK Mini Modular Vertical Foregrip - 3in Textured Grip: Manufacturer: A3 Industries Color: Black Material: Aluminum Length: 3 in Mount: M-LOK Package Contents: A3 Industries +10 Degree M-LOK Mini Modular Vertical Foregrip - 3in Textured Grip A3 Industries VFG-194: +10 Degree M-LOK Mini Modular Vertical Foregrip - 3in Textured Grip Black