M4-89 13.7 Rifle - Sons of Liberty Gun Works

Key Features:

• Barrel: Sons of Liberty Gun Works Upgraded V2 13.7” 4150CoMOV 1:7 MPI HPT Barrel (pinned to 16")
• Caliber: 5.56 NATO
• Barrel Steel: 4150 CrMoV (Chrome Moly Vanadium per MIL-B-11595E)
• Twist Rate: 1/7 Twist
• Thread Pitch: 1/2-28 Threaded Muzzle with Pinned HUXWRX Muzzle Device
• Gas Block: .750″ Gas Block Journal with an appropriately sized gas port
• Barrel Finish: QPQ Corrosion Resistant Finish
• Barrel Extension: QPQ coated M4 Feed Ramp Extension
• High Pressure (proof) Tested (HPT)
• Magnetic Particle Inspected (MPI)

Lower Receiver:

• Material: Made from Mil-Spec 7075-T6 aluminum forgings
• Finish: Anodized to Mil-Spec MIL-A-8625F, Type III, Class 2, Hard Anodize Coating, Flat Black Dye, Non-Reflective, NiAc Seal
• Contour: Fully machined leaving no flash marks from the forging. All lowers are cut with M16 auto pocket.
• Saftey: Quick Q Ambi Safety
• Safe, Fire, and Full Auto Pictograms.

Buffer System:

• Receiver Extension: Intermediate Receiver Extension Tube made from 7075-T6 Aluminum
• Buffer: A5H2 Buffer
• Buffer Spring: SpringCo Green Rifle Length Spring
• Receiver end plate: QD Mil-Spec with properly staked Castle Nut
• Fire Control Group: Sons of Liberty Gun Works Liberty Fighting Trigger (LFT) with consistent 5.5lb pull.
• Safety Selector: Sons of Liberty Gun Works Selector
• Grip: B5 Systems Grip – Black
• Stock: B5 Systems Bravo Stock – Black

Upper Receiver:

• Material: Made from Mil-Spec 7075-T6 aluminum forgings.
• Exterior Finish: Anodized to Mil-Spec MIL-A-8625F, Type III, Class 2, Hard Anodic Coating, Flat Black Dye, Non-Reflective, NiAc Seal
• Interior Finish: Anodized to Mil-Spec MIL-A-8625F, Type III, Class 2, Hard Anodic Coating, Flat Black Dye, Non-Reflective, NiAc Seal
• T-Marks: Engraved T-Marks
• Gas Block: Sons of Liberty Lo-Pro Gas block made from 4140 Steel and Nitride Treated with Knurled Head Set Screws
• Gas Tube: Sons of Liberty Standard Mid Length Melonited Stainless Steel
• Rail System: Sons of Liberty Gun Works Upgraded M89 Handguard
• Weight: 13 OZ
• Muzzle Device: SOLGW Pinned HUXWRX Muzzle Device to accommodate the industry-leading FLOW series of suppressors
• Sights: No sights included

Includes:

• Tactical Soft Case
• Three 30rd Mags
• SOLGW Sticker & Patch
• Copy of the US Constitution
• LIFETIME Warranty Certificate

At Sons of Liberty Gun Works, we believe in Quality Mil-Spec or better parts. We believe there is no substitute for quality, and that your gun should be built right the first time, ready for hard use right out of the box. We believe a quality Bolt Carrier Group and a quality, accurate, and long-lasting barrel are the heart of a Combat Grade weapon. We believe in properly tuned weapons using the correct gas system length and quality buffer system components. We believe in our products and back them up with a Lifetime Warranty. SOLGW weapons are meant to be used hard and go in harm's way; they won't let you down.

Upgrade to the M4-89 13.7 Rifle with the latest advancements from Sons of Liberty Gun Works and experience the pinnacle of performance and reliability.