Sturm Ruger AR-556 .223 Wylde Custom AR-15 with 20 inch Bear Creek Arsenal Stainless Upper, Free-Float Handguard, Ported Muzzle, 20+1
This Ruger AR-556 lower is paired with a Bear Creek Arsenal complete upper in .223 Wylde, featuring a 20 inch stainless barrel and a stainless ported, helical-cut muzzle device. The build uses a long free-float aluminum handguard with lightening cuts, a B5 Systems pistol grip, and a telescoping carbine stock with an integrated QD sling socket. It was manufactured in 2024 and comes with a 20-round PMAG and factory literature.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor scuffs and light finish wear are present on high-contact areas consistent with careful handling.
What’s Included
- Ruger AR-556 semi-automatic rifle with Bear Creek Arsenal .223 Wylde 20 inch stainless complete upper
- 1x Magpul PMAG GEN M3 20-round polymer magazine (5.56x45)
- Ruger AR-556 instruction manual
- Bear Creek Arsenal safety/owner pamphlet
The upper is a flat-top design with a Picatinny receiver rail, forward assist, brass deflector, and an ejection-port dust cover. The barrel is stainless steel, threaded, and capped with a stainless ported, helical-cut muzzle device for controlled gas venting.
The handguard is a long, free-float aluminum unit with extensive lightening cuts to reduce weight and improve cooling. A short accessory rail section at 6 o’clock is installed for mounting a vertical grip, bipod, or other compatible accessories.
Furniture includes a B5 Systems pistol grip and a telescoping carbine stock featuring an integrated QD sling socket and a hex-pattern recoil pad. Length of pull measures 11.25 inches.
This AR-15 platform rifle uses a direct-impingement gas system with a manual safety. The matte black aluminum receiver set presents a clean, modern finish. It accepts AR-15/STANAG magazines and ships with one 20-round PMAG. No sights or optics are installed.

