Q&A for Kinetic Development Group Modular Receiver Extension, Compatible w/ all 7.62 & 5.56 SCAR Model

Kinetic Development Group Modular Receiver Extension, Compatible w/ all 7.62 & 5.56 SCAR Model

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Mac, member, from GA, United States, asked on November 26, 2018

What is the difference between the 4' and 6' rail systems?

Expert Answer

Answered by Mark H., Gear Expert, from IL, United States, on April 04, 2019

If you're referring to the 4.9 and 6.5, it''s the length of the accessory rail, and the number of slots - click on the photos and you should be able to see the difference - 6 slots vs 10 slots.

Mark H.

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AJ, member, from AL, United States, asked on November 21, 2017

Please help me under stand the difference between the KDG MRX5-110 and the MRX5-120 Which have M-Lok at the 3-6-9 positions ect...

Expert Answer

Answered by Armando R., Gear Expert, from IL, United States, on December 16, 2017

The difference is that the MRX5-110 uses a "industry standard" modular system whereas the MRX5-120 uses the Magpul M-Lok attachment system. If you are looking for the M-Lok rail is it MRX5-120.

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Q&A for Kinetic Development Group Modular Receiver Extension, Compatible w/ all 7.62 & 5.56 SCAR Model — 2 Questions & 2 Answers

What is the difference between the 4' and 6' rail systems?

Please help me under stand the difference between the KDG MRX5-110 and the MRX5-120 Which have M-Lok at the 3-6-9 positions ect...