Patrol Base.
0 Items | Total £0.00View Basket
  • Visit Our Store.
  • Fast UK Delivery.
  • Airsoft Two Tone Service
  • Airsoft Upgrades and Repairs
  • Airsoft Hop Units & Hop Rubbers

  • Sort by


Displaying: 1 to 2 of 2
Viewing page: 1 
MK23 Socom NBB TDC Cover Hop Mod - Black

HADRON DESIGNS MK23 Socom NBB TDC Cover Hop Mod - Black

  • Mauri & ASG MK23 SOCOM NBB
  • Enhanced Range Performance
  • No Tools Required

MK23 SOCOM NBB Cover Hop Mod Black Is a Replacement Dust Cover and Hex Screw for all Airsoft MK23 NBB gas pistol, which allows Airsofters to Adjust the Hop Up of their MK23 without having to Strip the pistol. As many within the Airsoft community know, the MK23 NBB series of gas pistols are renowned for having excellent range and accuracy, especially for something the size of a pistol. However, to adjust the Hop Up, users must Strip the gun down each time they make an adjustment, which is hardly practical or convenient. This Replacement Dust Cover solves the problem; the new cover features an External Hex Screw which applies pressure directly onto the MK23s Hop Up Arm. Users can now make incremental adjustments to the Hop Up and test fire their MK23 without having to field-strip the gun every time they wish to make another tweak, in addition to being able to make adjustments in-game. Installation is Quick, Easy and as an added bonus does not require tools. This Modification allows Airsofters to drastically improve the performance of their MK23, or use Heavier Weight BBs, without having to replace any other internal components. Should users wish to further Enhance their MK23, replacement Hop Up Rubbers and Inner Barrels may offer even greater performance improvements, however even with Standard Internal components, the Cover Hop Mod allows the use of 0.25g and even 0.32g BBs with little difficulty. All in all, this is incredibly simple but very effective modification is an essential purchase for any Airsofter with a Non Blowback Gas MK23 Pistol.


Here at Patrol Base we offer a range of replacement and stock parts for Airsoft 6mm BB Guns, here you can find a wide selection of Hop-Up Units for your weapon. Wether you are looking for a Stock Replacement or Upgrade part we have most parts to suit your needs. 

We offer both Hop-Up Units, and Hop-Up Rubbers, Nubs and Bucking, allowing you to tailor your weapon to your requirements. 

We stock a range of Upgrades for a range of Weapon Types and Brands, such as Classic Army, Tokyo Marui, WELL, ICS, King Arms, KWA, Magpul and Ares.

If you can't find something that you like, or want something which isn't on the website why not contact us via Phone and we can do our best to source it for you! 

Telephone: 01484 644709


Need Help? Call a specialist on 01484 644709

Monday to Saturday 9:30am to 5:30pm, but don't forget our late night Thursdays 9:00pm closing!

Exclusive offers, news & events

  • SagePay
  • PayPal
  • Visa
  • MasterCard
  • Maestro
  • Solo
  • Delta
  • Visa Electron
  • Verified by Visa
  • MasterCard SecureCard
  • Norton Secured