King Competition Shotgun Shell Holder
King Competition MSH Gen 6 – Modular Shotgun Cartridge Holder for IPSC and Competition.
The stock information shown above is very accurate and updated dynamically. In stock items are shipped the same day when ordered before 2pm, or can be collected after ordering. Warehouse items will arrive with us in the timescale shown. Collection is by appointment only and must be booked in advance. Our phone lines can get extremely busy and email is the most efficient way to communicate with us!
King Competition MSH Gen 6 – Modular Shotgun Cartridge Holder
The MSH Generation 6 is a high-performance modular shotgun shell holder, designed for hobby and competition shotgun use, including IPSC. This latest version cartridge holder improves on shell retention, release smoothness, and overall durability thanks to upgraded materials and manufacturing.
Shells are held firmly in place by high-strength magnets and are released cleanly with a short pull. The new guide system helps with cartridge alignment, even with varying cartridge dimensions. It supports all typical 12/70 competition cartridges without adjustment, though spring tension can be manually tuned if needed.
The King Competition system is compact, with tightly spaced shells staggered for either hand. It's compatible with all modern loading styles (load-2, load-4), and mounting is flexible—hook and loop, M6 bolts (included), or optional adapter. The backing plate is curved to wrap around the waist and stay within IPSC 75mm rules when mounted directly (using TEK-LOK or ELS may exceed this).
Shotgun Shell Carrier Specs:
- Cartridge distance to mounting face: 57mm
- Shell height adjustment range: 33mm (13mm self-adjusting)
- Weight (approx.): ASSM4 – 135g, ASSM8 – 260g, ASSM12 – 390g, ASSM20 – 670g, ASSM28 – 940g, ASSM32 – 1170g
- Max storage temp: +80°C
- Adapter not included in sizes ASSM20 and up
- TEK-LOK / ELS fork not included
Shipping Methods
Collection/On-Site Service
Collect your order from our premises in Hampshire or a Blue RPC club shoot. Have a chat with us and a browse whilst you're here!
Royal Mail 24
Despatched same working day if ordered before 1400, with next day delivery aim, but is dependant on Royal Mail.
International Shipping
Despatched same working day if ordered before 1400 GMT. Our website automatically detects your country, so if it lets you order it then we can ship there!
Firearms and Ammunition
See the RFD Transfer and Club Collection page for more details.