ARMSAN RS‑S1 Barrel Extension 150 mm

ARMSAN RS‑S1 Barrel Extension 150 mm — Professional ARMSAN RS‑S1 Tuning for Hunting, Sport, and Counter‑FPV Drone Use

Looking for ARMSAN RS‑S1 upgrades? Our ARMSAN RS‑S1 barrel extension adds 150 mm of length (470 → 620 mm), increasing initial projectile velocity, stabilizing shot and slug flight, and significantly improving performance against dynamic targets.

Choose the choke for ARMSAN RS‑S1 based on your mission:

Choke	Constriction	Optimal Use
Cylinder	0.0 mm	Close range, fast targets
Light Improved Cylinder	0.25 mm	General hunting, training
Modified	0.5 mm	Medium range, FPV drones
Light Full	0.75 mm	Tight shot pattern
Full	1.0 mm	Maximum range and pattern density

Why this matters for counter‑FPV drone applications

• Denser shot pattern with Modified / Light Full chokes increases hit probability on small, fast-moving targets.
• Extended barrel length stabilizes the shot column, reducing dispersion and increasing effective range.

Technical Specifications

Parameter	Value
Material	45 steel, deep blued finish
Length	150 mm
Weight	256 g
Compatibility	Armsan RS‑S1, 12 × 76

Get the maximum performance from your shotgun: tighter patterns, longer effective range, and higher overall efficiency.

WARNING! Use of shot and buckshot of any size and type is permitted. When firing round slugs, ensure that the projectile freely passes through the choke constriction.

We manufacture barrel extensions for other shotguns to order (any caliber, length, and choke constriction).

Buy ARMSAN RS‑S1 Barrel Extension 150 mm

Weight	256 g
Dimensions	150 mm
Choke	Cylinder 0.0 mm, Imp. Cylinder 0.25 mm, Modified 0.5 mm, Imp. Modified 0.75 mm, Full choke 1.0 mm
Brand	Tihon (Ukraine)
Caliber	12 Gauge
Material	Steel DIN C45 (Germany)
Coating	Taktschwarz
Warranty	12 months