Rainier Arms AR-15 Night Rail System M-LOK - 14 - $246.95

Description

Material: Aircraft Grade 6061-T6 Aluminum / Barrel Nut: 4140 Steel
Proprietary, patent pending 2 piece barrel nut that provides 360 degree contact
Free float rail design
No visible screws on the rail system
Will include barrel nut wrench to install
8.6 oz / barrel nut 3.9 oz
1.37" Internal Diameter
Made in the USA!