3rd Generational Upgrades Include:

• EXO3 has a 4140 Steel barrel nut vs aluminum on EXO2
• Updated proprietary lockup with a custom 4140 set screw that pulls the rail into the upper
• SOLGW added the anti-rotation pin from the M76/M89
• Added slight finger grooves like the M76/M89 but not as pronounced
• Spaced out the lightening holes to stiffen the rail

Specifications:

• Barrel: Sons of Liberty Gun Works 4150CoMOV 1:7 MPI HPT Barrel
• Caliber: 5.56 NATO Chamber
• Barrel Steel: 4150 CrMoV (Chrome Moly Vanadium per MIL-B-11595E)
• Twist Rate: 1/7 Twist Six Groove
• Thread Pitch: 1/2-28 Threaded Muzzle
• Gas Block: .750″ Gas Block Journal with appropriately sized gas port
• Gas Length: Carbine
• Barrel Finish: QPQ Corrosion Resistant Finish
• Barrel Extension: QPQ coated M4 Feed Ramp Extension
• High Pressure (proof) Tested (HPT)
• Magnetic Particle Inspected (MPI)
• With “F” Marked Taper Pinned Front Sight Block
• Weight: 2 lbs 12.5 oz