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 we back them up with a Lifetime Warranty. Our weapons our meant to be used hard and go in harm’s way, they won’t let you down.
All rifles are test fired twice in shop to ensure proper function.
The M4-EXO3 is the third generation of our proven EXO series fighting rifles. Our rifles are built with duty and service in mind, whether it be Law Enforcement, Hunting or home defense. Our EXO series rifles have everything you need and are built to require minimum maintenance for years. We share all our specs with you because its not about what a rifle company tells you, its about what they don’t.
Sons of Liberty Gun Works Bolt Carrier Group HPT/MPI Check out the specs here:
https://sonsoflibertygunworks.com/collections/components/products/solgw-bolt-carrier-group-158-carpenter-sp-hpt-mpi?variant=3084070593
Barrel: Combat V2 13.7″ 4150 CoMOV 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
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: Sons of Liberty Gun Works Forged Lower Receiver – Lone Star
Material: Made from Mil-Spec 7075-T6 aluminum
Finish: OD Green H Series Cerakote
Contour is fully machined leaving no flash marks from the forging.
Hidden lowers are cut with M16 auto pocket.
Safe, Fire, and Full Auto Pictograms.
Buffer System: Mil-Spec Buffer System
Receiver Extension: Mil-Spec 6 Position Receiver Extension Tube made from 7075-T6 Aluminum
Buffer: H Buffer
Buffer Spring: Sprinco BlueSpring
Receiver end plate:Â Quick Detach End Plate with properly staked Mil-Spec Castle Nut
Fire Control Group: Liberty Fighting Trigger 6- 6.5lb
Safety Selector: Mil-Spec Ambi Selector
Grip: B5 P23 Grip
Stock: B5 Bravo Stock Black
Upper Receiver:
Material: Made from Mil-Spec 7075-T6 aluminum.
Finish: OD Green H Series Cerakote
T-Marks: Engraved T-Marks
Charging Handle: ODG Liberty Charging Handle (LCH)
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 Mid Length Melonited Stainless Steel
Rail System: 13″ Sons of Liberty Gun Works EXO3 Rail system.
Muzzle Device: NOX 9 Hole
Sights: None, Optics Ready
Includes: Tactical Soft Case, One SOLGW Steel 30rd Mags, 2oz Bottle of S.P.E.C. 76 Lubricant, SOLGW Sticker & Patch, copy of the US Constitution, and LIFETIME Warranty Certificate