Clustertronix HB

Med Müller Competition Chokes – choke tube for proffesionals, but my is more sexy :-)
https://www.amazon.com/dp/B0GW18Z9Y1
https://www.amazon.com/dp/B0GW187TQP
https://www.amazon.com/dp/B0GW1D7RB5

https://www.amazon.com/dp/B0GVZNH1CF

Mobil choke Tube 12 Ga. IC / .711. Perfect for Hunting and S***t.

https://www.amazon.com/dp/B0GVZWZ6X8

Mobil choke Tube 12 Ga. LM / .706" Perfect for long range clay a bird

https://www.amazon.com/dp/B0GW1D7RB5

Invector Plus 12 Ga. Billman Arsenal

https://www.amazon.com/dp/B0GVZX58DP

Mobil choke Tube 12 Ga. M / .701". Perfect for Hunting and Long Range S***t 12 Ga. Billman Arsenal

https://www.amazon.com/dp/B0GV4JZDCR

⚠️ GUNSMITH ONLY TOOL: BillmanArsenal Choke Calibration (Choke tube skirt iron) designed specifically for trained gunsmiths. In general, broken choke tubes should be replaced, and this tool is intended for use only by trained gunsmiths.
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Precision choke tube calibration that restores proper alignment and corrects deformation for more consistent patterns and improved shotgun performance. Tested on 12 Ga and 20 Ga. chokes.
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Gunsmith‑grade construction engineered from durable materials to withstand repeated use in workshops, hunting clubs, and professional maintenance environments.
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Fast, controlled adjustment designed to correct choke skirt distortion without damaging threads or altering the internal geometry of the tube.
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Reliable Swedish engineering focused on accuracy, longevity, and consistent results for shooters who demand dependable tools.

BillmanArsenal Choke Calibration Tool (Choke Tube Skirt Iron) Precision Alignment Made Easy Our Choke Calibration Tool. Works with BER/Ben, Mobilchokes, invector, Optima etc. and Other chokes The BillmanArsenal Choke Calibration Tool is engineered for fast, accurate measurement and alignment of shotgun choke tubes. Built for gunsmiths, competitive shooters, and hunters who demand consistent performance, this tool corrects choke skirt deformation and restores proper geometry without da...

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Compensator, 12 Ga. Vented and ported design engineered to reduce muzzle rise and improve shot-to-shot control. For hunters working with dogs, the porting also helps direct hot gases away from the dog’s position.

https://ebay.us/m/gSoORf

https://www.ebay.com/itm/198155095808

Shotgun compensator for 12 Ga barrels. Shotgun compensator 12 Ga. Billman™ (Black colour only)

This compensator are made of a variant of aircraft ALU.

Fits:
Hunting shotguns with or without went ribs.

(Does not fit tactical shotgun, in general).
Acceptable Barrel diameter .850-880" inch
Opening for went rib is like 0.31", 0 ⁵/₁₆.
Length of design from bottom to top about 2.95
⚠️ This item should be fitted by a Gunsmith. Even if we try our best to make it ready for use out of the box, some minor Gunsmith work might be necessary. Such work can include, but is not limited to:
Replacing the lock screws (M3) with a longer ones in case your barrel is thicker than normal.
Shaving off or polishing some metal for a oversize vent rib.
Use a screw clamp to form and tighten compensator around the muzzle (Do NOT use the lock screws).
A "torque" around 15 is OK, is more necessary use longer screws or better, a screw clamp.
Tested on (among others): Mossberg 88, Maverick,
This compensator is mainly for use with slugs. For safety reasons, avoid some types of shots (without wad cup)
Compensator does not reduce the recoil due to Natural laws. The natural law that governs the recoil of a firearm is Newton’s Third Law of Motion, which states that for every action, there is an equal and opposite reaction (recoil). A compensator may reduce the felt recoil by pressing down the muzzle. But it can not override the Natural laws..

https://www.ebay.com/itm/198155095808

Beretta Australia BillmanArsenal!

https://www.amazon.com/dp/B0FST2MJWB

Optima HP PORTED Choke Tube Set (5X) 12 Ga. Replacement for BER/Ben BillmanArsenal