A3 Industries SIG MPX-K Angled Foregrips MJF Nylon Black. 5 inches of rail space. By specializing the design of the AFG to meet the contours of the MPX magwell we get an integrated look making use of all the limited space resulting in the most comfortable firearm-specific AFG possible for this platform. Also fits PSA AK-V with MLOK handguards Manufactured from MJF Nylon. Specifications for A3 Industries SIG MPX-K Angled Foregrips: Manufacturer: A3 Industries Color: Black Fabric/Material: MJF Nylon Condition: New Features of A3 Industries SIG MPX-K Angled Foregrips Lightweight polymer construction with stainless M-LOK nuts Integrated hand-stop Package Contents: A3 Industries SIG MPX-K Angled Foregrips A3 Industries AFG-109: SIG MPX-K Angled Foregrips MJF Nylon Black