Barska Flip-Up Tactical Sight Set Black Medium. These AR 15 Parts from the cohorts at Barska feature spring loading for lightning speed deployment every time. With a posi-lock design the Barska Tactical Sight Set maintains zero effortlessly. Rugged and durable the Barska Mountable Sight Set will provide quality service for years to come. Specifications for Barska Flip-Up Tactical Sight Set: Manufacturer: Barska Color: Black Additional Features: Picatinny/Weaver-Style Mount Precise Windage Adjustments Posi-Lock Design Helps Maintain Zero Dual Peep A2 Style Apeture on Rear Sight Spring Loaded for Quick Deployment Gun Model: M16 AR-15 Fabric/Material: Aluminum Barska Flip-Up Sight Set BK-IRN-FUTSS Spring Loaded for Quick Deployment Dual Peep A2 Style Apeture on Rear Sight Posi-Lock Design Helps Maintain Zero Precise Windage Adjustments Picatinny/Weaver-Style Mount Rail Type: Picatinny Style Weaver Style Rail Length: .86 in Body Material: Aluminum Finish: Black Matte Applicable Firearm: AR15 and M16 Style Package Contents: Barska Flip-Up Tactical Sight Set BK-IRN-FUTSS What firearm models does the manufacturer say Barska Flip-Up Tactical Sight Set is compatible with? The manufacturer says that Barska Flip-Up Tactical Sight Set is compatible with AR-15 M16Barska AW13258: Flip-Up Tactical Sight Set Black Medium