Wilson Combat WC-15F 5.56 NATO SBR with SIONICS 11.5 Upper, LaRue MBT-2S, Microbest BCG, and Radian Ambidextrous Charging Handle
This custom-configured AR-15 SBR combines a Wilson Combat WC-15F lower with a SIONICS 11.5-inch complete upper for a compact, purpose-built 5.56 NATO setup. It features a LaRue MBT-2S two-stage trigger, a Microbest bolt carrier group, and a Radian ambidextrous charging handle, delivering a refined shooting interface and proven internals. The free-float SIONICS M-LOK handguard with full-length Picatinny rail, A2 flash hider, and B5 Systems adjustable stock round out a well-selected component set. The bore is excellent, and the rifle shows very good overall condition.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor superficial scratches and blemishes are present.
What's Included
- SIONICS complete upper with free-float M-LOK handguard (installed)
- Radian ambidextrous charging handle (installed)
- LaRue Tactical MBT-2S two-stage trigger (installed)
- Microbest bolt carrier group (installed)
- B5 Systems adjustable carbine stock (installed)
- 1x 30-round Magpul PMAG polymer magazine
Built on a Wilson Combat WC-15F lower marked "CAL. MULTI" and "Berryville, AR," this rifle is paired with a SIONICS 11.5-inch 5.56 NATO complete upper. The direct impingement system and free-float barrel setup emphasize consistency, while the A2-pattern flash hider caps the threaded muzzle.
The fire control group is upgraded with the LaRue MBT-2S two-stage trigger for a defined take-up and break. A Microbest bolt carrier group handles cycling, and a Radian ambidextrous charging handle with an extended latch provides positive, bilateral manipulation.
The SIONICS free-float M-LOK handguard includes a full-length Picatinny top rail for mounting, with M-LOK slots along the handguard for accessory placement. The bore is excellent with sharp rifling, supporting the rifle’s clean overall presentation.
A B5 Systems adjustable stock offers a length of pull from 11.25 to 14.75 inches and includes a QD sling socket. The rifle uses the STANAG magazine interface and ships with a 30-round Magpul PMAG. The selector is marked SAFE/FIRE, and the pistol grip is textured polymer.
Receivers are aluminum with a matte black anodized finish, matching the handguard and other components for a uniform appearance. This USA-made configuration presents a focused 11.5-inch SBR build centered on quality, proven parts: SIONICS 11.5 complete upper, Microbest BCG, Radian charging handle, Wilson Combat lower, and LaRue MBT-2S.