Serbu RN-50 .50 BMG 29.5" Barrel Long-Range Single-Shot Platform with Shark Brake

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Description

The Serbu RN-50 29.5" .50 BMG is a rugged long-range platform built around a modified break-action design with a threaded breech system. This configuration features the standard 29.5" alloy steel barrel, 1-in-15 button rifling, and Serbu’s large multi-port “Shark Brake” for a distinctive, purpose-built profile.

This example includes a matte black/gray finish, ventilated handguard, top Picatinny rail, lower accessory rail segment, textured grip, skeleton-style rear stock, and oversized muzzle brake.

Ideal for range-focused enthusiasts, collectors, and buyers looking for an affordable entry into a .50 BMG long-range setup, the RN-50 offers a simple mechanical layout, strong material construction, and a highly recognizable Serbu design.

Specs Table

Specification	Detail
Manufacturer / Brand	Serbu
Model	RN-50
Configuration	29.5" Standard Barrel
Caliber / Chambering	.50 BMG
Action	Modified break action with threaded breech
Barrel	Alloy steel, 1-in-15 button rifling
Muzzle Device	“Shark Brake,” threaded 1.00-14 RH
Fire Control	AR-15 style trigger and safety, custom hammer, spring-loaded firing pin
Approx. Trigger Pull	About 6.0 lbs
Chassis	Heat-treated steel and aluminum construction
Finish	Manganese phosphate, hard anodized, nitrided; matte black/gray appearance
Stock	Skeleton-style rear stock visible in photos
Included / Visible	Rear stock, top rail, lower accessory rail, ventilated handguard, Shark Brake
Condition	Pre-owned; visible handling marks, light finish wear, and minor surface discoloration