ohhunt® 4 inch M-Lok Handguard with Barrel Nut for AR-15 M4 Pistols

4 inch M-LOK Handguard: Guide Type: M-LOK Handguard. Compatible With: AR Pistols Length: 4 inch/104.5mm. Total weight (including Barrel Nut): 4.1oz/188g. Barrel Nut: External diameter: 1.35 inch, Inner diameter: 1 inch. Barrel Nut Thread Size: American Thread 1 1/4-18 UNC. Wrench Size: 1.2" Crowsfoot Nut Wrench Rail Type: Picatinny Weaver. No. of Rails: 1. Material: 6061 Aluminum, Steel(Barrel Nut). Ultra Slim Design for Comfort and Weight Reduction. Cut for weight reduction, this system still retains the utmost in robust construction and provides a Picatinny top rail mounting system and plenty of attachment points for all your M-Lok accessories. Works with low profile gas blocks. 7 Sides of M-Lok Slots Around The Body. M-Lok & Picatinny Rails Hold All Your Accessories. With Anti-rotational Tabs For Secure Fit 1913 Rail Meticulously Engineered To Be Ultra Light. Steel Barrel Nut And Allen Wrench Included. Tips: Bulk purchase can customize the handguards without l