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Questions & Answers
What length do I need for the mlok rail with 6 slots? Manufacturer Answer

With six slots, you can run up to our 7" M-Lok ARCA rail.

by MDT Sporting Goods, Manufacturer, June 19, 2025
Will the 8.6 arca-Swiss fit the mdt xrs with out sticking out of the end of the stock Manufacturer Answer

Yes, the 8.6" can be slid back on the XRS so that it does not hang past the forend.

by MDT Sporting Goods, Manufacturer, June 19, 2025
Customer Reviews
Helpful Positive Review
Perfect fit for a aero precision M5E1 by Josh, Verified Owner, July 17, 2024
This fits great on my Aero Precision M5E1 paired with an Accu-tac PC-5. Rock solid mounting and excellent combination.
1/1 found this helpful
Helpful Positive Review
Great product poor Shipping Package by Miguel Diaz, Verified Owner, October 15, 2023
The MDT arca rail is good but the shipping was very bad. Please, if you can, send this in a cardboard box and not in a plastic envelope. I received the product with a few scratches and I don't have time to return it now.
3/3 found this helpful
Helpful Positive Review
Installed on MDT XRS Chassis by wildcatgoal, Verified Owner, October 14, 2020
Installed the longest one on my MDT XRS chassis which I use (with the Savage sitting inside of it) in PRS Tactical class. Once installed, it's never budged and is holding up well. The supplied hardware seems to be high quality and doesn't strip.
5/5 found this helpful
Helpful Positive Review
Howa Oryx replacement part by Pfdr, July 28, 2020
Bought for a Howa Oryx, too long of a wait for the mdt part. Great fit and finish. Works like a dream with an atlas bi-pod. Arca is a must have! Picitinny and keymod have their place but that is not on my hobby gun. Fit and install fast and painless.
2/4 found this helpful
Most Recent Reviews
the best ever made by spyder, Verified Owner, November 25, 2025
Absolutely amazing love it it extremely well built .
Most Recent Reviews
Does Not Fit SAKO S20 Precision Stock by TH, Verified Owner, July 1, 2024
I bought the MDT long rail adapter because the OEM SAKO Arca Rail was not in stock. Unfortunately the long rail adapter does not fit the SAKO S20 Precision Stock. The MDT rail has fixed protrusions that do not correspond to the M-Lok slots in the SAK...
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0/1 found this helpful
Read All 26 Reviews
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Product Info for MDT Arca-Swiss M-LOK Rail Adapter

Mil-spec Type III hard-black anodized aluminum Arca Swiss Adapters that attach to M-Lok compatible handguards and forends. Available as a standard, flat profile that can adapt to most M-Lok compatible surfaces or as an angled profile that is designed to match the underside profile of the MDT LSS-XL Gen2.image

Specifications for MDT Arca-Swiss M-LOK Rail Adapter:

Manufacturer: MDT
Color: Black
Condition: New
Country of Origin: Canada
Finish: Mil-spec Type III hard anodized finish
Fabric/Material: 6061-T6 Aluminum

Features of MDT Arca-Swiss M-LOK Rail Adapter:

  • Compatible with M-Lok mounting systems commonly found on rifle chassis
  • stocks and handguards
  • including the MDT ESS and LSS-XL Gen2.
  • mounting surface to fit a wide array of tripod adapters and accessories.
  • 14 drilled and tapped holes to allow proper indexing of accessories for increased consistency.
  • Rearward overhang to allow mounting on a tripod closer to the rifles centre of gravity.
  • Solid M-Lok boss to withstand repeated recoil.
  • Angled front surface to ease tripod engagement and reduce snagging.
  • Rounded edges to decrease shooter discomfort when shooting standing or unsupported.
  • 6061-T6 aluminum construction.
  • Mil-spec Type III hard anodized finish to stand up to repeated usage.
  • Compatible with RRS dovetail standard.

Package Contents:

  • MDT Arca-Swiss M-LOK Rail Adapter

MDT Arca-Swiss M-LOK Rail Adapter Orderable Models

List of Orderable Models

  • MDT M-LOK Arca Swiss Rail, Standard, 3.3in, Black, 103416-BLK , MPN: 103416-BLK , UPC: 709951103289 , Code: 3JN-WPM-ASRAMLK-103416-BLK
  • MDT M-LOK Arca Swiss Rail, Full Medium, 8.6in, Black, 103570-BLK , MPN: 103570-BLK , UPC: 709951106471 , Code: 3JN-WPM-ASRAMLK-103570-BLK
  • MDT M-LOK Arca Swiss Rail, Full Long, 10.25in, Black, 103572-BLK , MPN: 103572-BLK , UPC: 709951106488 , Code: 3JN-WPM-ASRAMLK-103572-BLK
  • MDT M-LOK Arca Swiss Rail, Full Short, 7in, Black, 103568-BLK , MPN: 103568-BLK , UPC: 709951106464 , Code: 3JN-WPM-ASRAMLK-103568-BLK

MDT Arca-Swiss M-LOK Rail Adapter Unavailable & Discontinued Models

List of Unorderable Models

  • MDT M-LOK Arca Swiss Rail, LSS-XL Gen2, 3.3in, Black, 103418-BLK , MPN: 103418-BLK , UPC: 709951103296 , Code: 3JN-WPM-ASRAMLK-103418-BLK
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