Harris Engineerings Ultra-Light 13"-27" Rotating Bipod is manufactured with heat treated steel and hard alloys. It clamps to the Q.D. stud of most bolt action rifles that have a conventional stock design. Carrying your rifle with a sling or shooting off-hand is not impeded by the use of a Harris Bipod. Folding legs have completely adjustable spring-return extensions (Except for Model BRM and LM). Features : Attaches to a Sling Swivel Stud ,Legs Extend from 13" to 27"" Three Piece Standard Legs Swivel Base tilts to compensate for uneven terrain