Shockproof - Opticgard Scope Cover build in the Interlocking Pins Are Shockproof and is Designed to Shield the Optic From Scratches, Scuffs Caused by Regular Use OpticGard Scope Cover Compatible with Holosun 508T Protect Your Optic While in Action from Stray Casing and Drops Easy Snap On Shockproof Includes a Detachable... Offers protection against stray bullet casings and scratches Can be used while using the firearm OpticGard Cover with Intelligent Cut to Allow Cover to Fit Most of Rear Sight Fast and easy installation with access to buttons Option 1: (Optic Cover Only) Step 1: Insert Optic Cover Step 2: Snap interlock pins into the drain hole Option 2: (Optic Cover + Lens Cover) Step 1: Point your muzzle upwards and put the cover lens on top Step 2: Insert optic cover while holding the lens in place Step 3: Snap interlock pins into drain hole It Comes with One Detachable Lens Cover Protection Based on Your Preference. Interlocking pins for secure fit, even with heavy recoil Installation Process WARNING: Before installing always make sure your firearm is unloaded and your muzzle is pointed towards a safe direction. Designed in USA Patent Pending- World's First Scope Protector That Protects Your Optics From Chips Scratches and Scuffs While in Action Maintains Red Dot Visibility Unlike Others Dust Cover Must Be Removed From Red Dot in Order For Use. Offers protection against stray bullet casings and scratches Helps with Target Focus Training NEW! Shimano STEPS SM-BTE60 Battery Charger Adapter Y79N00010 US $10.99 or Best Offer Condition Compatibility Model - Only Compatible with Trijicon SRO Scopes OpticGard Scope Cover Compatible with Trijicon SRO Scope Cover is Made from High Quality Material Ensuring The Scope Are Protected During Normal Use Sro Trijicon Scope Cover Compatible With Trijicon SRO Protect Your Optic Trijicon Hd Shield