Geissele freefloat handguard - Geissele Super Modular Handguard Rail M-LOK MK8

Well executed machining and finish! Product is supplied with a .750" diameter set-screw type stainless gas block. Very precise fit. I found that cooling the barrel in the fridge and heating the gas block with a hair dryer allowed the gas block to gently slide into position (Tap's tip of the day). Gas block comes with a roll pin if fastening permanently to the barrel is desired. Also included is a Geissele barrel wrench. The handguard itself is rugged and fits perfectly over the supplied barrel nut. Installation of the barrel nut with the Geissele Reaction Rod and a standard torque wrench (not included) was simple. A standard pre-bent gas tube fits without modification under the handguard.