Sons of Liberty Gun Works M4-76 5.56 NATO AR-15 with 14.5 in Barrel Pinned and Welded to 16 in, M76 Free-Float M-LOK Rail, Ambi Safety
This SOLGW M4-76 stands out with its 14.5 in barrel pinned and welded to 16 in, SOLGW M76 free-float M-LOK rail, and ambidextrous safety selector. It includes an installed Vortex 30mm one-piece cantilever scope mount with a top-mounted RMR plate, adding ready-to-use mounting capability. Markings reflect SOLGW’s San Antonio, Texas origin, and the rifle ships with a Magpul PMAG.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal handling marks and signs of prior use. The muzzle device shows heavy carbon build-up. The bore is bright and clean.
What’s Included
- Vortex 30mm one-piece cantilever scope mount with top-mounted RMR plate (installed)
- 1x 30-round Magpul PMAG 5.56 polymer magazine
The M4-76 features a 14.5 in barrel that is permanently pinned and welded to reach a legal 16 in overall barrel length. The bore presents clean, sharp rifling, and the included muzzle device is permanently attached. It accepts detachable STANAG-pattern magazines and is chambered for 5.56mm NATO.
The SOLGW M76 free-float M-LOK rail provides a continuous top rail, an integrated steel QD socket, and a robust three-screw lower clamp with a wedge-lock style interface. The upper receiver is equipped with a forward assist, brass deflector, and dust cover.
Controls and furniture include an ambidextrous safety selector, an adjustable collapsible stock, and a Magpul pistol grip. Length of pull is 11.25 in, and capacity is 30+1 with standard magazines.
The receivers are aluminum with a matte black anodized finish. Rollmarks include MODEL: M4, CAL: MULTI, and Sons of Liberty Gun Works, San Antonio, Texas. The rifle follows SOLGW’s 1776- serial prefix format. An installed Vortex 30mm one-piece cantilever mount with a top-mounted RMR plate provides mounting for a 30mm scope and an RMR-footprint optic.