Shop › SAMSON M-LOK GRP MED GRND BLK SAMSON M-LOK GRP MED GRND BLK $60.74 Samson Manufacturing Corp. Vertical Foregrip, Anodized Finish, Black, Fits M-LOK, Medium (3.5"), Grenade Design 04-05103-01 Quantity: Add To Cart Added! Samson Manufacturing Corp. Vertical Foregrip, Anodized Finish, Black, Fits M-LOK, Medium (3.5"), Grenade Design 04-05103-01