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M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
M89 11.5" Drive Lock Rail Black
None
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SONS OF LIBERTY GUN WORKS - M89 11.5" Drive Lock Rail Black

2 Reviews
M89 11.5" Drive Lock Rail Black
Brownells #
430102714
MFR #
M89-11.5
UPC
785939519525
$299.99
Coupon Code
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Specifications
Color:
Black
Handguard Style:
Tactical
Item Weight (lbs):
0.950
Item Width (Inches):
1.400
Item Height (Inches):
25.000
Material:
Aircraft Aluminum
Item Length (Inches):
11.500
Quantity:
1
Restriction
Restricted Part:
Yes
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International purchase information

What is the SONS OF LIBERTY GUN WORKS - M89 11.5" Drive Lock Rail Black?
Available for the first time in this length, exclusive release for Brownells.


The revolutionary, patent pending Drive lock design, uses three independent wedges that interface with the angular grooves in our proprietary barrel nut. This system clamps the rail onto the steel barrel nut with extreme force and precision, while also driving the handguard rearward towards the upper receiver. The slightly larger ID of that extrusion gives us more real estate around the gas block, even more rigidity than the M76, and takes longer to heat.


SOLGW is not discontinuing the M76. That will remain in full production. They are just adding the M89 to the lineup.

Restricted Part
Please check with your state regulations for ownership of Restricted Parts. May require documentation.

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M89 DRIVE LOCK RAIL REVIEWS

5.0
2 Reviews
5 Stars
100%
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5
Works well
Quick and easy installation. Didnt come with instructions which is annoying but they can be found online. Comes with wrench and as long as you have a torque wrench it is about as easy as a build as it gets. Looks great and I like the 45 degree mlok slots as well. Came with an aluminum qd sling attachment as well. Overall I'd recommend.
Would you recommend this? Yes, I would recommend to a friend
by MARSHALL EASON on April 15, 2026
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5
SOLGW & Brownells good stuff
Sons of Liberty makes great stufff
by David Hancock on August 15, 2024
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Was this review helpful? 1
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