Radical Firearms RF-15 AR-style pistol chambered in .223 Rem/5.56 NATO with a 7.5″ 1:7″ barrel, 30+1 capacity, 7″ RPR free-float M-LOK handguard and Magpul BTR pistol brace. Semi-auto platform with forged mil-spec receivers and top Picatinny rail.
The Radical Firearms RF-15 is an AR-style pistol chambered in .223 Rem/5.56 NATO that pairs forged mil-spec upper and lower receivers with a 7″ RPR free-float handguard for accessory space and heat management. The 7.5″ barrel with a 1:7″ twist is built for reliability with 4150 chromoly/vanadium steel construction and a threaded muzzle. A red-dot optic such as the Vortex StrikeFire II (under $1,000) complements the platform for fast target acquisition without exceeding the firearm’s compact footprint. This configuration suits range training and practical carbine-style competition where maneuverability and modularity matter.
Product Specifications
The model and part number are RF-15 — FP7.5-5.56M4-7RPR-BTR.
The caliber is listed as .223 Rem/5.56 NATO.
The action is Semi-Auto.
The barrel measures 7.5 inches and has a 1:7″ twist in 4150 chromoly vanadium steel.
The magazine capacity is 30 + 1 rounds.
The number of magazines included is 1.
The handguard is a 7″ RPR free-float M-LOK style with a top Picatinny rail section.
The upper receiver configuration is forged mil-spec.
The lower receiver configuration is forged.
The stock/brace is a Magpul BTR pistol brace with a black polymer finish.
The finish is described as anodized black.
The optic footprint is Picatinny.
The firearm ships with no sights installed.
The safety is a manual safety.
The UPC is 814034029513.
This RF-15 balances a compact barrel and a full-featured free-float rail to give you a modular platform that handles accessories while keeping overall length low. The combination of forged receivers, a 7.5″ 1:7″ barrel, and the Magpul BTR brace makes it a straightforward choice for shooters who want a durable, configurable AR pistol for range use and practical competition.
Owners commonly praise the free-float RPR handguard for staying cool under extended use and providing ample space for accessories. Many buyers also note the familiar comfort and control of the Magpul BTR brace and Magpul grip.
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