SIONICS handguards are incredibly rigid and the inherent design features ensure anti-rotation. Through rigorous testing both by SIONICS and the many LE agencies using SIONICS rifles we can ensure zero retention when using IR/VIS aiming devices.
Our test rifle, “Chuck Norris”, has had over 200,000 rounds through it with very little cleaning or maintenance and still runs great, so you be the judge.
All SIONICS products are warranted against defects in material and workmanship for the life of the original retail purchaser. For more information refer to the terms and conditions page.
Currently all of our barrels are chambered in 5.56 NATO.
The quick answer; as long as it’s 5.56 or .223 then it will work great. That being said, we test fire all of our firearms, uppers and BCG’s using Magtech M193 55gr 5.56 ammunition.
Nope. That is why we have our strict QC Process and test-firing procedures.
Chrome lining is a treatment applied to the inside of SIONICS barrels. Chrome lining is essentially an alternative to a Melonite/nitride finish. During this process, chrome is applied to the lands and grooves of the barrel’s rifling, as well as the chamber. In order to ensure accuracy with this extra material, chrome-lined barrels are typically bored out more than the…
Our barrels are Manganese Phosphate coated. Manganese Phosphate is coating on the outside of the barrel using a sprayed or immersed salt bath to achieve a somewhat porous finish that then more readily accepts and holds lubrication to help prevent corrosion.
Our 11.5″ and 12.5″ barrels come only in a 1/7 twist rate and our 16″ barrel comes in a 1/8 twist rate.
The SIONICS barrels utilize 5R Rifling. 5R Rifling helps fight bullet failure due to a softer angle on the sides of the lands vs. conventional style rifling that utilizes 90° corners of the lands, which is a very hard edge. Furthermore, with 5R, you have 5 lands in the bore of the barrel. The odd number of lands does not…