BCM® KeyMod™ 4 inch Picatinny Rail Section, Aluminum

MSRP: $28.00
Your Price: $24.95
(You save $3.05 )
(76 reviews) Write a Review
Stock Status:

Rail section is made of Hard Anodized Aircraft Aluminum Alloy.

Mounting hardware is made of Corrosion Resistant Stainless Steel

Made to the Mil-Standard 1913 Picatinny Arsenal Specifications.

Available is three Lengths: 3-inch (5 slot), 4-inch (7 slot) and 5.5-inch (11 slot)

Features a Snag resistant design, while retaining Mil-Standards specs.

Self-contained assembly, eliminates the possible loss of mounting hardware.
Fits ALL KeyMod™ interface mounting surfaces.
Test fit to ensure proper function (may display attributes consistent with this QC process)

Please note: Nylon/Polymer Picatinny rail sections are for NON-load bearing accessories only. For load bearing accessories, we recommend aluminum Picatinny rail sections. Do NOT exceed 20 in-lbs. when securing KeyMod™ Fasteners on Polymer accessories. Aluminum Picatinny rail sections may be torqued to 30 in-lbs

***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

76 Reviews

  • 5
    Key Mod Rails

    Posted by Frank Kolsky on Jan 25th 2021

    High quality perfect fit and easy to install. Great product and customer service I will continue to be a loyal customer.

  • 5
    4 inch aluminum pic rail

    Posted by Herbert Morel on Sep 11th 2020

    Perfect for mounting my bipod, rock solid. Thank You.

  • 5
    Excellent American Quality

    Posted by Mark Willits on Aug 1st 2020

    No comparison to the Chinese crap spend a little more money get the good stuff you'll be glad you did

  • 5
    perfect amount of room.

    Posted by Rudy Reyna on Jul 10th 2020

    didn't really know how this went one but when it got in I was to easy and amazing how well it did work deffently woth the money if you got no bottom rails.

  • 5
    Keymod rail

    Posted by Anonymous on May 9th 2020

    Can’t beat authentic

  • 5
    BCM® KeyMod™ 4 inch Picatinny Rail Section, Aluminum

    Posted by Greg Kartes on May 2nd 2020

    Outstanding fit, design and manufacturing

  • 5
    KeyMod 4inch piciinny rail

    Posted by HENRY B Morton on Jan 21st 2020

    Although I returned this item due to a mix up on model, Mlok needed, my mistake I have used this rail prior to this purchase. The rail was made to great and fine tolerances, with a good coating applied, and it was solid when anchored to a rail. Its edges griped my magpul rail covers and allowed no wobble. Can not ask for more.

  • 5
    Customer review

    Posted by Jason McGowan on Oct 25th 2019

    Review body is empty

  • 5
    Well Built

    Posted by Coop on Oct 19th 2019

    Fits like a glove! Fast shipping. Thanks again to the boys in company B!