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5KU Machined Outer Barrel for TM M4 MWS Series Airsoft GBB Rifles (Style: CQB / 7")

ID: 23481 (BRL-5KU-MWS-1)
5KU / APS859188234819MWS-123481
3.0 stars, based on 1 reviews
5KU Machined Outer Barrel for TM M4 MWS Series Airsoft GBB Rifles (Style: CQB / 7)
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  • Machined aluminum construction
  • Fits TM M4 MWS rifles
  • 14mm CCW threads
  • Drop-in upgrade part

Manufacturer: 5KU


Compatibility: For Tokyo Marui M4 series MWS Airsoft GBB Rifles
Threads: 14mm Negative (CCW)
Material: Aluminum

About 5KU / APS

5KU is a division of APS Limited, focused on manufacturing high quality aluminum and steel external upgrade accessories for AEG and GBB airsoft guns.

1 Customer Review

(Write a review)

by alex b. on 02/22/2022
"Tokyo Marui MWS Carbine - 5Ku 10" barrel length

It's really straight forward to replace the outer barrel, the stock conical brass conical fits over the 5ku snugly and inner barrel/hop up unit fits true and snug. Eye-balling it, the inner barrel, relative to the outer barrel, it's pretty centered. With the stock inner barrel, the barrel falls short by 4.8 mm. Fits into the upper receiver no problem.

It isn't a one piece, there are two pieces to the outer barrel, the main base (that inserts into the upper receiver) and the shaft that fits into a cylindrical base of the main base and is secured by two grub screws at 12 and 6 o clock. There is enough tolerance between the base and the shaft that it'll un-tighten the grub screws loose, making the outer barrel wobble. To minimize this tolerance, I've carefully wrapped teflon tap to the shaft which did take out significant amount and blue loc tite the grub screws. Hopefully this'll be a semi permanent solution, otherwise I'll be trying retaining loctite (green) to secure the shaft.

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