Firefield's Rival-XL M-LOK Foregrip (FF35006) adds stability to your AR in any situation. Rival Foregrips are customizable with different pieces to fit your needs to add control and accuracy in tactical shooting, combat simulations and home defense. Rival Foregrips are designed skeletonized for it to be as light as possible while an aluminum body allows for it to be durable and shockproof.