Tiger Rock Booster Flash Hider AR-15 1/2x28 Thread Pitch Black Small. The aggressive design along with the multiple ports this flash hider will keep your rifle on target. Specifications for Tiger Rock AR-15 Booster Flash Hider: Manufacturer: Tiger Rock Finish: Melonite Fabric/Material: Stainless Steel Threads per Inch: 1/2x28 Gun Make: AR Platform Gun Model: AR-15 Weight: 2.5 oz Features of Tiger Rock AR-15 Booster Flash Hider Aggressive design No porting at 6 o'clock position Package Contents: Tiger Rock AR-15 Booster Flash Hider What firearm models does the manufacturer say Tiger Rock AR-15 Booster Flash Hider is compatible with? The manufacturer suggests that Tiger Rock AR-15 Booster Flash Hider is compatible with AR-15Tiger Rock MBK42#: Booster Flash Hider AR-15 1/2x28 Thread Pitch Black Small