UTG RBT-PD933: Durable and Impact Resistant Glass Fiber Reinforced Matte Black Polymer Constructiona 33 Round Capacity with Durable Co-molded Polymer Window and Debossed Round Count Indicators at 33, 25, 20, 15, and 10a Anti-tilt High Visibility Blue Follower and High Longevity Stainless Steel Spring for Reliable Feedinga Flared Lower Main Body with Raised Bosses for Additional Grip Retentiona Compatible with GLOCKA(R) 17, 18, 19, 19x, 26, 34, and 45 and Most Other Pistol Caliber Carbines, Large Platform Pistols, and Pistol Clones that Take GlockA(R) Magazinesa Compatible with Reversible Magazine Release for Left or Right Handed Usersa Easy to Remove TPU Over-molded Anti-slip Base Pad