KAK Industry AR-15 Gas Tube Features The KAK Industry gas tube is manufactured to mid-length gas system specifications so it routes propellant gas from the gas block back to the bolt carrier group at the correct timing for reliable cycling. A properly sized and finished gas tube is a small part with an outsized effect on reliability since a bent undersized or poorly finished tube can cause short-stroking or gas leaks. The silver finish gives builders an easy way to distinguish gas system length at a glance when working on multiple uppers side by side. This tube fits standard AR-15 mid-length gas systems making it a practical choice for builders assembling a new upper or replacing a damaged tube. KAK Industry was founded in 2011 to address a gap in the market for quality American-made AR-15 components at affordable and sustainable prices. Note that a roll pin is not included with this gas tube so builders should have one on hand to properly secure it to the gas block during installation. Keeping a spare gas tube on hand is good practice for any AR-15 owner since the part is inexpensive relative to the downtime caused by a damaged one. For builders and armorers maintaining mid-length AR-15 uppers the KAK Industry gas tube is available for sale at GrabAGun. KAK Industry AR-15 Gas Tube Specifications Manufacturer: KAK Industry Model: Gas Tube Type: Gas Tube Color: Silver Size: Mid-Length Compatible Hosts: AR-15 Available At: GrabAGun