13.5mm x 1 LH to 1/2-28 Thread Adapter - Knurled

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Convert your Sig Sauer and Glock 9mm (left handed) 9mm barrels to your .223 (5.56), 9mm, or .22 accessories with this 13.5mm x 1 LH to 1/2-28 thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory adaptation!


Inner Threads: 13.5mm x 1 LH

Outer Threads: 1/2-28 RH

Material: Black Oxidized Steel

Texture: Knurled


Please note that this does not fit AR platforms chambered in 9mm. Thank you.

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Warranty Information

Lifetime Warranty
We are confident in the quality of our products and our stellar customer support, which is why most of our products are backed with an unconditional Lifetime Warranty. We guarantee ALL of our products against defects in materials or workmanship for the life of the product. We will repair or replace defective products free of charge. You need only ship the defective item back to us with a description of the issue, and our fast-acting service team will solve the problem or replace your product to ensure that you are 100% satisfied – NO MATTER WHAT!

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Additional Information

Black Steel
Internal Threads:
13.5mm x 1 LH
External Threads:
1/2-28 RH
Gun Type:
Sig Sauer Pistols (9mm)
Gun Type:
Sig Sauer MPX (9mm)
Gun Type:
Kriss Vector (9mm)
Gun Type:
Glock (9mm) - Factory threaded
Caliber Size:
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1 Review

  • 5

    Perfect fit

    Posted by John Harsh on Feb 1st 2024

    Fast and easy to buy. Perfect fit, well made and the treads line up exactly. Best buy ever

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