Monstro-Coupler 5.56" Flag and is not designed to

and is not designed to side arm fixtures

connects aluminum speed-rail in multiple directions

Features a standard mitchell receiver in center

Chain holds and locks around any shape or size

they are perfect for attaching to odd size pipes and tubes

Monstro-Coupler 5.56" Flag and is not designed toThe Monstro Coupler 5. 56 fits 5" pipe, outside diameter of 5. 56". The Monstro Couplers are designed to fit pipes larger than the standard theatrical battens. CNC machined from solid billet aircraft grade aluminum, they are perfect for attaching to odd size pipes and tubes. Monstro Couplers have a narrow size range of application. Monstro Couplers are designed with a plus or minus 0. 0625" tolerance on their nominal size to ensure that they will fit