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Solid end Filter Cap (Stainless steel)

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  • There is a spot drilled hole to help center your drill if you decide to put your own drain in this cap.
  • This cap is solid with no drain hole. It has a spot drilled hole so you can drill your own drain hole to the size you need, if needed.
  • Image 3
Twin Tech Tactical

 Product Description


These WIX 24003 / NAPA 4003 filter caps allow you to attach a WIX / NAPA filter assembly directly to your muzzle thread without the use of an adapter. They are made form 416 Stainless Steel, use the same o-rings and are much more corrosion resistant and durable than the original aluminum caps. 

This cap is solid with no drain hole. It has a spot drilled hole so you can drill your own drain hole to the size you need, if needed.

 freeship.png   Within the US.



BUYER UNDERSTANDS THAT THESE PARTS ARE NOT SUPPRESSORS AND OR SILENCER PARTS IN ANY WAY SHAPE OR FORM.  Buyer fully understands that they waive their rights to ANY claims against Twin Tech Tactical for ANYTHING. These parts are sold for the intended purpose of cleaning firearms and solvent storage ONLY! In other words Twin Tech Tactical is not responsible for how these parts are used or modified after you receive them. Any modification to, or misuse of our parts is the sole responsibility of the purchaser. Twin Tech Tactical and its employees are not responsible for the actions of their customers or the manner in which they use our parts and will NOT accept any liability in any way morally, legally, or financially. These parts are legal to posses and use as sold, and we assume and expect that all of our products purchased by you are used for their intended purposes only and discourage any modification or misuse of any kind.

By purchasing our products you agree to the Terms of this website.

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 Product Reviews

  1. Stainless adapter

    Posted by Unknown on Jan 21st 2018

    Another Precision part from Twin Tech Tactical. Five star 5 * 5 * do I need to say more! Everything that this company makes is 5 * you cannot go wrong doing business with these people.

  2. A+++

    Posted by Jose on Aug 22nd 2017

    Another solid quality piece. Fitment on the wix tube is on point!
    Also like to note it you get the "filter cups" there is no rattle noise.

  3. Very well made end cap

    Posted by Greg Clark on Feb 6th 2017

    I ordered a single blank end cap in stainless. It was shipped promptly and the fit and workmanship was flawless! I don't see how it could have been better and I'm a part time machinist/gunsmith.

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