4.2" length free float rail mount with Picatinny Top rail and M-LOK slot system. 7075-T6 Aluminum barrel nut included.
CNC machined from Quality aluminum and black anodized. Super light weight, only 5 oz with barrel nut.
A true free float rail, which connects only at the barrel nut. Since
the rail doesn't touch the barrel, shooting accuracy is improved in
comparison with two piece rails, when used with grips / bipods that can
flex the Steel barrel.
I.D. - Interior wall to wall I.D. is 1.358"
Specs: 4.2" Long, 1.5" wide, 2.0" tall.
Weighs 5 oz.
These will fit 223/5.56 uppers.