SOLGW M4-76 Match 13.9" Pinned 6.5 Grendel Rifle

Barrel: Sons of Liberty Gun Works 13.9" 6.5 Grendel II Mid Gas Match Grade Barrel 1:8
Caliber: 5.56 NATO Chamber
Barrel Steel: 4150 CrMoV (Chrome Moly Vanadium per MIL-B-11595E)
Twist Rate: 1/8 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 – Scalper
Material: Made from Mil-Spec 7075-T6 aluminum Cerra Forge forgings
Finish: Anodized to Mil-Spec MIL-A-8625F, Type III, Class 2, Hard Anodic Coating, Flat Black Dye, Non-Reflective, NiAc Seal
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.
Various Roll Marks

Buffer System: Enhanced A5 Buffer System
Receiver Extension: 9 Position Loyal 9 Receiver Extension Tube made from 7075-T6 Aluminum
Buffer: A5H2 Buffer
Buffer Spring: Sprinco Green Spring
Receiver end plate: Quick Detach End Plate with properly staked Forwards Controls Design Castle Nut

Fire Control Group: LaRue MBT

Safety Selector: Sons of Liberty Gun Works Ambi Selector

Grip: B5 P23 Grip

Stock: B5 Bravo Stock Black

Upper Receiver:
Material: Made from Mil-Spec 7075-T6 aluminum Cerra Forge forgings.
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

Charging Handle: SOLGW Ambi 

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 M76 Wedge Lock Rail system.
Weight: 12 OZ
Inside Diameter: 1.3″ ID
Finish: Mil-Spec Type III Class 2 Hard Coat Anodizing per Mil-Spec Mil-Spec MIL-A-8625F
Barrel Nut: Steel with QPQ Finish
Free Floating Design
Grade 8 Fasteners
Anti Rotation- Anti Slip Design
No Special Tools Need for Barrel Nut
Continuous top rail design
Mil-Spec 1913 Mounting rails

Muzzle Device: SOLGW NOX

Sights: None, Optics Ready

Includes: Tactical Soft Case, Two SOLGW Steel Mags, 2oz Bottle of S.P.E.C. 76 Lubricant, SOLGW Sticker & Patch, copy of the US Constitution, and LIFETIME Warranty Certificate