Perseus VSR-10 / SSG10 Hop Chamber

The Perseus VSR-10 / SSG10 Hop Chamber is the result of years of development, testing, and refinement across multiple design iterations to deliver exceptional consistency, reliability, and ease of installation.

Key Features

True TDC Adjustment

The chamber features a true Top Dead Centre (TDC) adjustment that applies pressure directly from the top of the chamber onto the purpose-designed nub, developed around the Flamingo bucking. The low-profile TDC adjustment assembly mounts directly to the outer barrel and attaches securely to the chamber—no tape, glue, or improvised fixes required.

The integrated clicker wheel and detent provide precise micro-adjustments while preventing the setting from drifting during use.

Outstanding Air Seal

Thanks to its tight manufacturing tolerances and carefully engineered design, the Perseus Hop Chamber provides an excellent air seal with the majority of buckings on the market. For optimal performance, we recommend pairing it with the Flamingo bucking, which the chamber was specifically designed around.

Simple and Accurate Alignment

The two-piece front chamber design makes bucking alignment quick and straightforward. Simply install the bucking, position the nub, and apply light pressure to immediately verify that the bucking is correctly aligned before tightening any screws.

Exceptional Stability

The chamber uses a three-point alignment system (two lower contact points and one upper contact point) to provide outstanding shot-to-shot consistency. This significantly reduces inconsistencies caused by outer barrel flex or rotation while helping maintain consistent hop alignment.

During installation, the design also allows you to accurately centre the hop chamber within the outer barrel relative to the nozzle position, further improving reliability and feeding consistency.

Installation Notes

• A free downloadable outer barrel support sleeve is available. This optional part sits inside the outer barrel to eliminate cylinder movement. Depending on your printer, material, and barrel tolerances, minor sanding may be required for the perfect fit.
• Do not overtighten the side retention screws, as doing so can damage your inner barrel.
• Compatible with unbridged inner barrels only, featuring a sufficiently sized hop window.
• New holes may need to be drilled, or existing holes enlarged, depending on your rifle and installation requirements.

What's Included

• 1 × Aluminium TDC Drill Guide
• 1 × Drill Bit
• 1 × Front Chamber Section
• 1 × Rear Chamber Section
• 1 × Nub
• 1 × Spacer Ring
• 1 × TDC Cover
• 1 × TDC Adjustment Wheel
• 1 × BB Stopper
• 1 × BB Stopper Spring
• 1 × BB Stopper Cap
• 2 × Front Retaining Screws
• 2 × Side Retaining Screws
• 1 × TDC Securing Screw
• 1 × Clicker Detent
• 1 × Nozzle O-Ring