The First Screen Weapon Light On the Market — WARRIORLAND CROSSBOW MA1 is an universal rail mount weaponlight. Glock 17, 18, 19, 19X, 21, 20,21, 22, 23, 31, 32, 34, 44, 45, 47, 49 | Fits listed models’ gen 3-6 & MOS versions | 17V, 19V, 19X V, 20V, 21V, 23V, 44V, 45V.