STTI MK23 Gas Pistol Engagement Pack

Name: STTI MK23 Gas Pistol Engagement Pack
Brand: STTI
SKU: AP013209
Price: 139.99 GBP
Rating: 4.857142 (7 reviews)

Code: mk-23-eng-pk

£139.99 Pack price

Normally £165.94

Save £25.95

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Quantity

4.86 / 5 Read 7 customer reviews 7 reviews

Perfect Sniper Sidearm
Includes BBs & Gas
Great Starter Pack

This pack comes with everything you need to get your new Airsoft sidearm up and running, including the pistol, three magazines in total, as well as perfectly matched BBs and Gas to get you playing. If you're looking for the ultimate backup to a sniper rifle on a budget, or want a project pistol that is highly modifiable to reach out to crazy ranges, and doing some whilst staying ultimately silent, the STTI MK23 is the sidearm for you. This setup performs perfectly in both outdoor and CQB environments, making it a great choice for anyone looking to get into Airsoft and wants to be competitive in the field.

Delivery & Returns

If you have items in your basket from our European Warehouse, the minimum order value is £25. This is to cover EU shipping costs. The minimum order value includes the value of any items from our UK Warehouse.

Delivery & Postage

Here at Patrol Base, we send all our packages from our Warehouse based in the UK with the exception of European Warehouse Items. All of our parcels are sent with specially picked couriers to ensure your parcels get to you on time and in one piece.

For more information please check out our Delivery Information Page.

Estimates

Below are some rough postage prices for orders. Please note these are subject to change and are only a rough guide. For a more accurate postage estimate please use the Postage Calculator at the basket.

UK 3-5 day Standard

£6.95

From

Dispatched with 24hr UK mainland

£8.95

From

Highlands / Islands

£24.99*

From

* Please note that Scottish Highlands, and Islands postage prices can vary wildly. Please refer to the Postage Calculator at the basket for the lowest possible price.

Returns

We want you to be absolutely happy with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.

You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.

For more information on returning products, and how to do it please visit our Returns Policy Page.

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STTI ST-23 NBB Gas Pistol

4.86 / 5 (7 Reviews)

Code: …

Deadly Quiet
Mock Suppressor
Inner Barrel Extension

A non-blowback and gas-powered pistol which you would be forgiven for thinking is of another brand. It is built to a really impressive quality with high-density Polymers that feel great in the hand, with the exact same mind-blowing performance as the original design.

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£58.99 Pack price

Normally £64.99

Save £6.00

STTI 28rnd Magazine for ST-23/MK23 NBB Gas Pistols

3.5 / 5 (2 Reviews)

Code: GGH-0302M

OEM Standard
ASG/TM Compatible
For MK23 NBB Pistol

A replacement/spare gas magazine for the ASG / TM MK23 NBB pistols, which is manufactured to an OEM standard.

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£30.40 Pack price

Normally £34.99

Save £4.59

STTI 28rnd Magazine for ST-23/MK23 NBB Gas Pistols

3.5 / 5 (2 Reviews)

Code: GGH-0302M

OEM Standard
ASG/TM Compatible
For MK23 NBB Pistol

A replacement/spare gas magazine for the ASG / TM MK23 NBB pistols, which is manufactured to an OEM standard.

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£30.40 Pack price

Normally £34.99

Save £4.59

VORSK V6 Performance GBB Fuel

5 / 5 (3 Reviews)

Code: VCP-GAS-V6

175 PSI Output
Power Up Green Gas
For GBB Pistols, Rifles

A Performance enhancing Green Gas designed for use in Alloy / Metal slide Gas Blowback Pistols & Rifles. The VORSK V6 Green Gas provides you with a highly consistent composition of Gas to Silicone lubricant ratio, thus keeping your magazines and seals healthy while providing you with a super strong recoil and great shot-to-shot consistency! VORSK V6 Is the perfect Fuel for your Pistol!

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£8.70 Pack price

Normally £9.99

Save £1.29

Delta Armory 0.28g Diamond 6mm BIO BBs

4 / 5 (1 Review)

Code: DA-BB-DIA-BIO-028

1KG Resealable bag
High-grade polished BIO tracer BBs
0.28g - Ideal for outdoor skirmishes

If you're looking for 0.28g BIO BBs for woodland warfare, Delta Armory 0.28g Diamond 6mm BIO BBs are a fine choice. These BBs are supplied in a 1KG resealable bag of approximately 3571 BBs and are high-grade polished BBs to ensure reliable feeding and maximum accuracy potential.

Being made from biodegradable materials means these BBs are suitable for outdoor skirmishing at any site in the country and great for target shooting in the back garden. 0.28G BBs offer a few benefits compared to lighter weights, including extending range with the correct HOP-up setting, improving wind resistance and increasing foliage penetration potential. If you've got an outdoor skirmish booked, Delta Armory 0.28g Diamond 6mm BIO BBs are the right ammo for the job!

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£10.50 Pack price

Normally £13.99

Save £3.49

Delta Armory 100rnd Magazine Speed Loader

5 / 5 (2 Reviews)

Code: …

100rnd Capacity
Essential for loading mid-caps
Pistol mag shaped - Fits in pistol mag pouches

If you have mid-caps to load, you'll need one of these! The Delta Armory 100rnd Magazine Speed Loader is a thumb plunger type speed loader constructed from translucent polymer which holds 100 BBs approximately. The loader is filled via its fill window at the top and the thumb plunger can be deployed and stowed via the button on the side.

To load an Airsoft mid-cap or low-cap, simply fill your speed loader, align the fill/feed port of the magazine with the aperture on the bottom of the loader, hold the mag and loader together and push the thumb plunger repeatedly until it becomes firm. Your mag is now filled. If you run mid-caps, low-caps or you like to use multiple weights of BB, speed loaders are essential Airsoft kit!

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£1.00 Pack price

Normally £6.99

Save £5.99

Specification

Bundle Category	Pistol

General

Platform Type	Pistol
Over 18	Yes
Included Items	Gun, Speed Loader, Gas, BBs, Magazines,
Skill Level	Regular Player

Weapon Specific

Platform	MK23
Powered By	Green Gas

Customer reviews

4.9 / 5

7 reviews for STTI MK23 Gas Pistol Engagement Pack

Reviews.io customer reviews

Paul Wilson

Written on 23/04/2026

Great pistol feels heavy, it’s quite big especially with the mock suppressor on, it’s more of a barrel extension. Very accurate , shot well at 25 metres. Word of warning don’t over screw the suppressor and the centre nut will stay on the pistol and you’re left with a plastic suppressor, I managed to remove it and squeezed it back in, all in all a great pistol half decent price but you’ll need a spare mag definitely

Rated 5 out of 5

IONUT PASCALINA

Written on 30/03/2026

Verry good for that money.

Rated 5 out of 5

Carl Thomas

Written on 03/02/2026

Great starter kit, not too expensive so you can learn disassembly and not worry too much if it breaks. It seems pretty powerful and shoots accurately.

Rated 5 out of 5

Oliver Close

Written on 09/12/2025

Great to shoot and accurate. Very pleased with this as it’s great value for money and is pretty powerful.

Rated 5 out of 5

Cameron Admas

Written on 06/10/2025

Unreal value for money, got this for my sniper setup for when it's raining , it was shooting 1.2 joules with .28bbs so need a unbarreled suppressor to bring it down but a reliability sniper sidearm on a budget

Rated 4 out of 5

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