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  • Patrol Base Airsoft | Airsoft | M4 / 15 / 16 Variants
    Airsoft M4 / AR15 / M16 Variants 
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PB Custom Highspeed Amoeba Pro KM9 9'' Octarms M4

Patrol Base Custom Amoeba Pro KM9 9'' Highspeed Octarms M4

  • 30 Rounds Per Second
  • Custom Upgraded M4
  • Highly Energy Efficient

Patrol Base - Custom Amoeba Pro KM9 9'' Highspeed Octarms M4 is an in house build custom upgraded M4. built by our store tech this weapon is made to have incredibly fast trigger response for snap shooting in semi auto but also boasts a high rate of fire. Continous effort to develop efficient highspeed rifles has allowed us to create this monster. The rifle has a high rate of fire, while still retaining an excellent accuracy and perfect feeding. It is specifically build to be power efficient as well, and can be used with 11.1V stocktube LiPo batteries, or larger batteries by upgrading to a cranestock. This is helped by the ceramic bearings and the good airseal. It uses the amoeba EFCS triggersystem, which allows for rapid semi fire that could not be achieved with a mechanical triggerset system. The base rifle is from ARES and building upon their latest Gen3 HONEY BADGERS we are proud to introduce the Pro OCTARMS range M4. Unlike previous AMOEBA variants this M4 platform is all based within an alloy receiver unlike the Polymer predecessors. The change doesn't just end there, the new Pro KM OCTARMS range come in several KEYMOD rail lengths once again alloy with other alloy parts including buffer tube, outer barrel, charging handle, flash hider and more. Another clever features are the lockable body pins resulting in a solid receiver with no wobble. The KEYMOD rail also is secured with 6 bolts for added strength. The whole gun is excellent to hold and shoulder all day long. The gearbox is a tried and tested product from ARES. Featuring their most latest Gen3 BLUE chip you can program your fire modes as mentioned in the Full Description below.


Here at Patrol Base Airsoft we offer a range of Airsoft M4/M15/M16 Assault Rifle variants to suit every players style from CQB tactical setups to the DMR Marksman roles. We stock a range of manufacturersfrom ICS to Cybergun, G&G to Tokyo Marui and more. Stock to suit introductory and professional Airsofters, with a selection of both Gas Powered and AEG Electric Rifles.

We sell a range of high quality guns, with top sellers such as the G&G Combat Machine CM16 Raider, and the ARES Amoeba Range of Assault Rifles all available both in-store and online. If you're local, why not pop in and try out the guns before you buy! We are located in Huddersfield, near Manchester, and Leeds.

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

Can I buy an Airsoft Gun?

If you dont have a defence to purchace a RIF (Replica Imitation Firearm), such as UKARA, dont worry! You can still purchase any weapon as long as it has been sprayed Two Tone (Over 51% a Bright Non-Millitary Colour). For more information click the banner below.

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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!

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