Fully Licensed Product by Ronin Tactics, Agency Arms, Syndicate and Lone Wolf Arms CNC Aluminum Slide with Ronin Tactics' Signature Dragon Scale Design Optics Ready Out of the Box with CNC Steel Raised Iron Sights CNC Stainless Steel Agency Arms Premier Outer Barrel with 14mm CCW Threading with PVD Coating Finish Adjustable Syndicate (By Agency Arms) Trigger CNC Ronin Red Slide Plate Shark Scales Faux Stippled Frame Ambidextrous, Reversible Magazine Release Button Multi-Magazine Compatibility Guide Hop System Pre-installed Blacked Out Inner Barrel for Added Realism Includes Two Additional Back Straps For Different Grip Profile Glock Holster Compatibility This product is only compatible with gas designed specifically for Airsoft guns. Do not use lighter fluid or butane gas, as that will cause permanent damage.