ENDEAVOR®, Mk4, 5.56x45MM NATO, 18”
There’s a world of options when it comes to AR15s, and for those
that want to reach out to further targets or hunt with 5.56, the
18-inch ENDEAVOR® Mk4 chambered in 5.56x45mm is an awesome
choice. Despite all the different caliber offerings available today
for AR15 pattern rifles, 5.56x45mm still stands as one of the most
popular.
Built on our Mk4 – AR15 platform, this ENDEAVOR utilizes a
nitride-finished 18-inch 416 stainless steel barrel for enhanced
performance along with billet 6061-T6 aluminum upper and lower
receivers.
ZEROED parts and accessories:
• ZEROED Pistol Grip
• ZEROED Trigger Guard
• ZEROED 60°/90° Ambi Safety
• ZEROED AR15 Ambi Charging Handle
• ZEROED Ambi Mag Catch
• ZEROED Extended Mag Release Button
• ZEROED AR15 Bolt Catch
• ZEROED AR15 Polymer Dust Cover
• ZEROED Muzzle Brake 5.56mm

GENERAL PRODUCT SPECIFICATIONS