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HK 3 Lug Adapter 13.5 X 1 - SIG MPX

SKU: HKP-17410

13.5/1mm LH - 3 Lug 9mm Adapter - SIG MPX

HK 3-Lug Adapter that is threaded internally with 13.5 X 1 threads to attach to existing 13.5 X 1 Left hand threaded applications. Allows the use of 3-lug attachments to be added to the male end of the adapter such as flash hiders, compensators, suppressors, etc.

This is the finest machined HK 3 lug adapter available on the market today. Made 100% in the USA and built to factory HK German 3-lug specifications. Finished in the ultra desirable "Nitride" finish. This item is only available at HK parts.

Overall Length: 1.41"

13.5X1mm LH- 3 lug 9mm adapter is ideal for:

  • Sig MPX
  • Glock
  • Sig
  • Other applications where the 13.5 X 1 threaded barrel to 3-lug tip is required

Origin: USA
Price: $49.95
In Stock
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HK 3 Lug Adapter 13.5 X 1 - SIG MPX
HK 3 Lug Adapter 13.5 X 1 - SIG MPX
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Product Reviews

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"Perfect adapter for my SIG MPX and other 13.5X1 projects"

Tim Blythe on 2/28/2016 10:02:13 AM

Overall Product Rating:


I have many 3-lug adapters that I have purchased from many sources though the years. This adapter is by far the tightest fitting (in a good way) adapter. The price was much less than the others offering out there as well by $20. This units fits my SIG MPX 9mm and my Silencerco & AAC cans perfectly. The speed in which these guys processed and shipped my order was mind blowing! I ordered on a Saturday and I had in Monday when I got home from work. Simply a fantastic transaction from start to finis... More details


"Still Going Strong"

James O on 10/18/2018 8:35:12 AM


Order Fulfillment:


Desired Compatibility:


Sig MPXK

Product Quality:


Overall Product Rating:


After 2k rounds, multiple mount/dismount of suppressors this 3 lug adapter shows almost no wear. Outstanding product best 3 lug for MPX series.


"Shhhhhhhh.....SIG MPX"

Joe on 10/22/2015 6:35:00 PM

Overall Product Rating:


Perfect..put on SIG MPX with Silencer Octane works GREAT


"MPX 3 Lug"

Brad Laursen on 1/29/2019 10:59:11 AMVerified


Order Fulfillment:


Desired Compatibility:


Sig Sauer MPX

Product Quality:


Overall Product Rating:


Works perfectly, highly recommend!