15" MST Free Float Quad Rail w/ Barrel Nut Handguard for AR-15 / M4 Rifle

MST Optics Tactical T-Series 4/15 Free Float 15" Handguard Quad Rail Scope Mount

1.Four military picatinny rails for the installation of flashlight, laser, grip, bipod and red dot  scope

2.Overall Length: 380mm (15inch)

3.Inside Dia 46mm (1.8 inch)

4.Lower rail style with CNC procedure

5.T style: the upper rail is extended over the barrel nut for a 'no-gap' monolithic look

6.Light weight in precision

7.Easy and quick installation

8. High quality aluminum alloy in durable black matte finish

9. With hex key

10.Fit most model 15/4 rifle

11.Shock proof can be used on real fire caliber