How far apart are the holes? Like bolt hole centers

it is 1.5 inches long overall and the screw holes are .75 inch from center to center. I measured with a ruler so give or take a 16th of an inch or so LOL

Will the streamlight 88066 pro tac rail mount hl-x, 1,000 mount to this 3 slot m-lok rail system?

I have not tested the items you are referring to. However, they should work together. I would be surprised if they did not.

does this come with the 2 ea screws and Mlok T nuts?

Yes, It comes with everything you need to install it

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Description

🔧 Upgrade your gear with precision and style — don’t get left behind!

SNAG FREE DESIGN - Beveled edges eliminate sharp corners for smooth handling and quick maneuvering.
COMPACT TACTICAL - At just 1.6" length, it’s the perfect low-profile upgrade for your setup.
COMPLETE MOUNTING KIT - Includes all hardware for direct attachment to aluminum or polymer handguards—no extra parts needed.
DURABILITY MEETS LIGHTNESS - Injection-molded reinforced polymer ensures rock-solid strength without the bulk.
SEAMLESS M LOK INTEGRATION - Effortlessly attach any 1913 Picatinny accessory with precision-engineered 3-slot design.

The Magpul M-LOK Polymer Picatinny Accessory Rail is a lightweight, durable 3-slot rail section designed for seamless attachment of 1913 Picatinny accessories to all M-LOK compatible handguards. Made in the USA from reinforced polymer with beveled edges to prevent snagging, it includes all necessary mounting hardware for quick installation on aluminum or polymer platforms.

Specifications

Manufacturer	Magpul Industries Corp.
UPC	873750000343 796793171194
Global Trade Identification Number	00873750000343
Item Package Dimensions L x W x H	8.66 x 3.15 x 0.94 inches
Package Weight	0.02 Kilograms
Item Dimensions LxWxH	1.57 x 1.57 x 5.31 inches
Brand Name	Magpul
Model Name	M-LOK Polymer Picatinny Accessory Rail
Suggested Users	unisex-adult
Number of Items	1
Part Number	MAG589-BLK
Style	3 Slots
Included Components	Magpul M-LOK Polymer Picatinny Accessory Rail, 3 Slots
Size	One Size
Sport Type	Hunting, Tactical & Military
Grip Material	Reinforced polymer

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