Glock Factory OEM extended slide stop release lever that really adds versatility to your Glock pistol. This is a drop-in part, easy to install. This part fits all Gen 2, Gen 3, And Gen 4  Glock 9mm, .40, and .357 Fits models 17,19, 22, 23, 24, 25, 26, 27, 31, 32, 33, 34,  35 or your newer 3 pin pistols. Glock p/n SP07496. This is one of the easiest and most common Glock upgrades.