Radical Firearms RF-15 5.56 NATO, 16 in Threaded Barrel, Custom AR-15 Build with Odin Works Zulu and Fostech Sabre Grip
This custom RF-15 stands out with a Radical Firearms-marked lower, an unmarked aftermarket flat-top upper, and a well-chosen set of upgrades for control and adaptability. It features a 16 in threaded barrel with an A2-style flash hider, a free-float M-LOK handguard with a continuous top rail, and premium furniture including the Odin Works Zulu rear assembly and Fostech Sabre grip. It ships with a Magpul PMAG GEN M3 30-round magazine and a hard case.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There is a sticky residue on the barrel. There are a few small finish-loss spots on the handguard and some discoloration on the upper receiver.
What’s Included
- Hard case
- 1x 30-round Magpul PMAG GEN M3 polymer magazine
- Blue anodized M-LOK angled hand stop/foregrip (installed)
- Fostech Sabre pistol grip (installed)
- Odin Works Zulu adjustable rear assembly with LimbSaver recoil pad (installed)
This AR-platform build pairs a Radical Firearms RF-15 lower with an unmarked aftermarket flat-top upper that includes a forward assist and ejection-port cover. The lower is marked "MODEL RF-15 / CAL MULTI" and "RADICAL FIREARMS LLC, STAFFORD, TEXAS" with the RF logo. It runs a semi-automatic, direct-impingement system and accepts STANAG-pattern magazines.
The 16 in threaded barrel is topped with an A2-style flash hider. A free-float aluminum M-LOK handguard provides rigidity and mounting flexibility, with a continuous 12 o'clock Picatinny rail across the receiver and handguard. Anodized in matte black, the aluminum receivers and handguard keep the build consistent and durable.
Furniture and controls are thoughtfully upgraded. The Odin Works Zulu adjustable rear assembly with a LimbSaver recoil pad offers a tunable and comfortable rear interface, and it does not require the use of a castle nut. The Fostech Sabre grip delivers a secure, ergonomic hold. A blue anodized M-LOK angled hand stop/foregrip is installed for added front-end control. The magazine release is upgraded.
This configuration ships with one 30-round Magpul PMAG GEN M3 and a hard case. There are no sights included, leaving the continuous top rail open for the buyer’s preferred sighting solution or accessories.