Barrel Assembly, 20″, AR, “Pencil” Contour, 1×8, Chrome Lined, Threaded, Match Quality, FA by Criterion

Description Includes: Barrel Nut, Triangular Handguard Cap, Taper Pinned Forged Front Sight Base (Non F), A1 Front Sight with Spring and Detent, and Sling Swivel with Rivet.   Uniformity of the bore dimension, groove dimension, and twist, along with the finish produced by hand lapping are essential for the ultimate accuracy of the barrel which achieves “Match Quality”.   Our 5.56 NATO Chamber allows use of .223 Rem & 5.56×45 mm NATO Calibers.   *PLEASE ALLOW 3-4 WEEKS FOR SHIPMENT* Specifications 20″ “Pencil” Contour, 2lbs 3oz 1-8 twist 6 Groove .625 Gas Block 1/2 x 28 threaded muzzle 5.56 NATO finished chamber- Chrome lined Rifle-length gas system A2 Barrel Extension Ordinance-grade chrome-moly steel Manganese phosphate parkerized Button rifling, double stress relieved Weight: 2lbs 2oz M4 Feed Ramps Upon Request ($15) *BARRELS & BOLTS MUST BE PROPERLY CHECKED FOR HEADSPACE PRIOR TO USE. FAILURE TO DO SO MAY RESULT IN FIREARM DAMAGE, PERSONAL INJURY, OR DEATH* Chrome-lining will extend the life of your barrel and make it easier to clean. It is commonly thought that chrome-lining degrades the accuracy of the barrel. This is because during the chrome-lining process, material is chemically removed from the bore and then built back up with chrome, destroying the bore uniformity. Our unique chrome-lining process maintains bore uniformity, providing you with the advantages of a chrome-lined barrel without sacrificing accuracy.