Brand: FLUX Defense.
Model: Raider X SBR Stock – 1.5" Extension (Medium).
Firearm Fit: FLUX Defense Raider X and MP17 P320 Chassis Systems.
Butt Plate: Rigid, low-profile polymer buttstock surface intended for shoulder mounting.
Style: Collapsible, extended-length SBR (Short Barreled Rifle) replacement stock arm.
LOP Adjustment Range: Fixed extended length giving an increased 15.0-inch Length of Pull
Attachment Style: Proprietary dual-rail slot integration with a spring-loaded quick-deployment mechanism.
Material: High-strength advanced polymer composite.
Finish: Matte Black.
Length: Protrudes roughly 1.5 inches past the rear of the chassis when collapsed, extending to 20.0 inches overall when fully deployed.
Height: Compresses within the standard 4-inch to 6-inch chassis height clearance.
Width: Nests seamlessly into a 1.25-inch to 1.375-inch total overall width footprint.
Weight: 0.5 oz (standalone replacement stock arm weight).
Includes: 1x 1.5" Extended SBR Stock Arm, 1x Standard iron sight windowed back cap (for Raider X setup).

Features

Complete your registered SBR configuration with the FLUX Defense 1.5" SBR Stock for the Raider X P320. Designed as a factory-fit upgrade for the FLUX Raider X chassis, this stock extends 1.5 inches beyond the flush-fit model to provide a longer length of pull and a more comfortable shoulder position. The extended design gives shooters additional space without sacrificing the Raider X platform’s compact profile. Built for compatible P320-based Raider X configurations, this stock is a practical option for range use, training, or replacing an existing stock component on a properly registered short-barreled rifle.

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