IWI Zion-15 ARAD Features The IWI Zion-15 ARAD runs on a short-stroke gas piston system with a 2-position gas regulator meaning the action cycles cleaner and cooler than a direct impingement design while giving the shooter the ability to tune the system for suppressed or unsuppressed use. IWI s patented QD CamLok barrel system allows for exceptionally fast and easy barrel changes a level of modularity uncommon in the AR-15 category. The semi-monolithic upper keeps the optic mounting surface rigid and true so a mounted red dot or scope holds zero even under hard use and the 1:8 twist rate stabilizes a wide range of 5.56 bullet weights. M-LOK sections positioned at the 3 6 and 9 o clock positions on the handguard give shooters flexible mounting for lights foregrips and slings without needing separate rail sections. The B5 SOPMOD telescopic stock adjusts to fit the individual shooter s length of pull while the B5 grip rounds out ergonomics for a more comfortable controllable shooting experience. The black nitride finished barrel and receiver resist corrosion and wear from repeated use in the field or at the range. The IWI Zion-15 ARAD in 5.56 / .223 Rem gives shooters a rugged gas-piston driven AR-pattern rifle with best-in-class modularity for any mission profile. IWI Zion-15 ARAD Specifications Brand: IWI Model: Zion-15 ARAD Caliber: 5.56 / .223 Rem Capacity: 30+1 Action: Semi-Auto Operating System: Gas Piston 2-Position Regulator Barrel Length: 16 Barrel Description: Threaded Barrel Material: Chrome Moly Vanadium Barrel Finish: Black Nitride Twist Rate: 1:8 Thread Pattern: 1/2x28 Receiver: Picatinny Rail Black Nitride Handguard: M-LOK Stock: B5 Bravo / B5 SOPMOD Grip: B5 Magazine: 1 30-Round AR Pattern Weight: 7.08 lbs Available At: GrabAGun