King Competition Shotgun Shell Holder

King Competition MSH Gen 6 – Modular Shotgun Cartridge Holder for IPSC and Competition.

£ 50.00 50.0 GBP £ 50.00

£ 50.00

Hand
Capacity
- 4
- 8 + £ 45.00
- 12 + £ 90.00
- 20 + £ 220.00
- 28 + £ 270.00
- 32 + £ 320.00

This combination does not exist.

Some items may be subject to licensing and can only be sold to those with the appropriate authority to possess. Please see our Terms & Conditions or contact us if you have any queries.
Please read our shipping info for prices and delivery times.

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 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/Parcel Force 24
Despatched same working day if ordered before 15:00, with next day delivery aim.

International Shipping
Despatched same working day if ordered before 15:00 GMT. Our website automatically detects what country you are in, 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.

Search

Get results from across our site including products, blog posts and resources.