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UTG Tri-rail Mount for Front Sight Attachment-3 Barrel Sizes

Multiple Manufacturers
Ships from Warehouse 1
Typically ships the same business day when ordered before 4pm CST.
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•Complete with 2 Sets of Barrel Adaptors for Perfect Fit on Standard Barrel, Bull Barrel or Light Weight Barrel
•Attaches to Model 4/15 Barrel and Compatible with A2 Front Sight and Bayonet Lug
•Made from Aircraft Aluminum with Black Anodizing
•Includes Left, Right and Bottom Picatinny Rails, Each with 6 Slots
•Easy Installation and Rock Solid Locking 

Item#: 16-MNT-BR101TR-A
Total number of Reviews: 1

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2.0 5
"Purchased to install on a Ruger AR556. It does NOT fit this model as the barrel diameter is approximately .700". The two sets of bushings (shims) that come with this rail are either too big or too small. Was able to mount it using shim cut from a soda can, but it is not a very satisfactory solution, not very solid. My advice is to measure barrel dia. before purchasing as the barrel needs to match one of the three diameters exactly, not just be in the "range"."