How to Perform a Function Check

1. Check an AR-15 with the selector lever in the SAFE position. 

a. Pull the charging handle to the rear and release it.

b. Place the selector lever in the SAFE position.

c. Pull the trigger (the hammer should not fall).

2. Check an AR-15 with the selector lever in the FIRE (or SEMI) position.

a. Place the selector lever in the FIRE position.

b. Pull the trigger, holding it to the rear (the hammer should fall).

c. Continue to hold the trigger to the rear while pulling the charging handle to the rear and releasing the charging handle.

d. Release the trigger with a slow, smooth motion until the trigger is fully forward (the hammer should not fall).

e. Pull the trigger (the hammer should fall).