[da Vinci Custom] 03 Guren "2" GBB Shotgun Inner Barrel for SAIGA-12

03 Guren 2 inner barrel inner diameter 6.03mm
Outer diameter 8.55mm
HV500 coated (hardened, rust-proof, wear-resistant, and slip-resistant)

300mm for SAIGA-12K (product code: 4580717524298 )
SAIGA-12 SBS 200mm (Product code: 4580717524205 )

This product is sold in units of three, both the SAIGA-12K 300mm and the SBS 200mm.
This set of 3 is sold to align the front O-ring position between each barrel. This set is cheaper than the previous 3-piece set.

The second release in the Guren series, a low-priced inner barrel series featuring a tight 6.03mm inner diameter and HV500 coating that is highly resistant to wear and dirt while maintaining a beautiful surface!
Guren "2" aims to produce a professional-use barrel using iron.
The material and coating used is the same "HV500 Coat" as the Guren 1.
The muzzle has been upgraded from the "chamfered" finish of the Guren 1 to a "tapered" finish. The "tapered" finish efficiently expels air and converts it into energy that pushes the bullet forward, while creating a straightened airflow and improving accuracy.

The 6.03mm inner diameter is a tight barrel design that makes it easy to increase muzzle velocity. <br>The inner diameter is set to a tight 6.03mm, so you can expect to improve muzzle velocity just by replacing the barrel.
This product is made of iron. Unlike stainless steel, due to tolerances, the tightest design limit is an inner diameter of 6.03 mm.
If you set it any tighter, it will jam.

Guren's inspection standards include three internal diameter inspection points: "after polishing," "before coating," and "after coating."
In particular, we physically check to see if any burrs generated during processing have affected the inner diameter.
The polishing is then checked again by the "human eye" of a select few craftsmen in charge of polishing.
We put in time and effort to provide a thorough user experience.
Regarding roughness of the inner and outer diameters due to the material, and patterns that occur during processing (cutter marks, blade marks, etc.) that do not affect use,
After going through the above checks, the craftsman has given his permission, so please use it with confidence.

Example of installation on SAIGA-12 SBS <br>The genuine inner barrel length is 197mm, so if it is 200mm, it will protrude slightly.
Since this is a GBB shotgun, the aim is to use the inner barrel as a lead as far outside the outer barrel as possible.
Once the muzzle is attached, it fits securely inside the muzzle, so it cannot be seen from the outside (you can see it if you look inside).