The Makita 16 Gauge Straight Finish Nailer (model AF601) combines a myriad of features and powerful performance in a compact size. The AF601 has a rear-loading magazine that accepts standard 16 ga. straight finish nails sized 1" to 2-1/2". The nail lock-out and large windows alert the user when to reload nails as the contact arm and trigger are used together for controlled firing. With a compact size and weighing in at only 3.8 lbs., the AF601 was engineered for all-day professional use.