Caliber - 5.56x45 NATO
Barrel - CR-MO-V, BLACK NITRIDE
Barrel Length - 16"
Twist Rate - 1:7 RH
Trigger - SINGLE-STAGE, MIL-SPEC
Length - 32" Collapsed | 35.3" Extended
Weight - 6.1 LBS
Magazine - 30-Round PMAG
Gas Block - Picatinny Top
The M-15â„¢ DEF15 is legendary ArmaLite quality in a streamlined and affordable platform. The Defensive Sporting Rifle is a high quality, no frills rifle well suited for duty, sport or defense. The DEF15 utilizes a chromium molybdenum, nitride barrel for durability and accuracy.