Arisaka Defense Side Scout Mount Picatinny Black. It replaces the stock Picatinny rail adapter with a low profile mount that tucks the light underneath either side of the ATPIAL laser/illuminator series including the ATPIAL-C AN/PEQ15 and LA-5/PEQ. It will also allow the light to clear the QD lever on the Steiner DBAL I2 A3 and D2. The SSM is compatible with the Modlite PLH and OKW Surefire M300A M300B M300C M300V M312 M322 M312V M313V M322V M600B M600C M600P M600U M600V M600DF M612 M622 M603V M612V M622V Streamlight Protac Rail Mount 1 2 and HL-X and Arisaka 300 and 600 Series. Specifications for Arisaka Defense Picatinny Side Scout Mounts: Manufacturer: Arisaka Defense Flashlight Application: Hunting Fabric/Material: 6061-T6 Aluminum Color: Black Finish: MIL-A-8625 Type III Hard Coat Anodized Flashlight Model: Arisaka 300 Arisaka 600 Modlite PLH Modlite OKW Streamlight Protac Surefire Scout Condition: New Length: 1.265 in Weight: 0.6 oz Mount Type: Picatinny Gun Model: AR-15 Gun Type: Rifle Attachment Type: Picatinny Country of Origin: USA Gun Make: AR Platform Thickness: 0.2 in Features of Arisaka Defense Picatinny Side Scout Mount Requires a 1/8-inch Allen wrench and IP20/T20 Torx driver for installation (not included) A T9 Torx driver is required to remove the stock Picatinny mount from Surefire Scout Lights Recommended torque: 15-20 inch lbs for light body and clamping screws with medium strength threadlocker (Loctite 242/243 or Vibratite VC3) Package Contents: Arisaka Defense Picatinny Side Scout Mount Light body screws What firearm models does the manufacturer say Arisaka Defense Picatinny Side Scout Mounts is compatible with? The manufacturer suggests that Arisaka Defense Picatinny Side Scout Mounts is compatible with AR-15Arisaka Defense SSM-P: Side Scout Mount Picatinny Black