Product Info for RISE Armament Trigger Anti-Walk Pins AR-15 These AR 15 Parts from RISE Armament ensure secure installation of your drop-in trigger. RISE Armament Anti Walk Trigger Pins for your AR improve the reliability of your rifle by eliminating the tendency for standard pins to "walk out" over time. These anti-rotation pins will prevent the vibration of repeated and/or heavy use over time on your standard pins. Upgrade today for worry-free performance! Manufacturer's Note: The external width of AR receivers varies in the trigger/hammer pin area, depending on the manufacturer. If the pins are too long for your receiver, you may shorten the pins a small amount by carefully filing material evenly from both ends of the pins. However, this is not required. Longer pins will not affect the function or performance of the rifle. The torque spec on the screw is 11 inch-pounds maximum; however, 8 inch-pounds of torque is the recommended amount. WARNING: California`s Proposition 65 Specifications for RISE Armament Trigger Anti-Walk Pins AR-15: Manufacturer: RISE Armament Trigger Pin Size: 0.154 in Color: Black Finish: Black Nitride Fabric/Material: Kit Quantity: 2 Included Accessories: Allen Wrenches Weight: 0.04 lb Width: 2.05 in Gun Model: AR-15 Features of RISE Armament Trigger Anti-Walk Pins AR-15: .154 inches Pin material: Stainless steel Backed by lifetime guarantee Package Contents: RISE Armament Trigger Anti-Walk Pins AR-15 One (1) trigger pin One (1) hammer pin Four (4) screws Two (2) Allen wrenches for easy installation