how wide is the underneath side (the mounting side)of the rail?

Underneath side wide is 6.18 incn/15.7 mm.

Can you attach to an mlok setup?

No. This rail has a plain back; it does not have any of the recoil lug features necessary to retrofit to M lock.

Does this rail fit a round reciver or is it flat

Bottom of this rail is flat, to make a rail for a round receiver they'd need to know the radius of the "rounding".

What is the height of this rail in mm?

Length: 257mm (10.1 inch) Width: 21mm ( 0.825 inch) Height: 9.6 mm (0.378 inch)

10 Inch Long Picatinny Rail Mount Aluminum 25 Slot Black

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Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Elevate your setup with the ultimate 10-inch rail upgrade!

25 SLOT MODULAR RAIL - Customize your gear with maximum flexibility
PREMIUM ALUMINUM BUILD - Lightweight yet rugged for long-lasting durability
SEAMLESS COMPATIBILITY - Fits Weaver and Picatinny mounts effortlessly
PRECISION 10 INCH LENGTH - Perfectly sized for versatile mounting setups
COMPLETE MOUNTING KIT INCLUDED - Ready to install with screws and Allen wrench

The Crotek 10-inch Long Picatinny Rail Mount is a robust, lightweight aluminum rail featuring 25 slots for versatile accessory attachment. Designed for seamless compatibility with Weaver and Picatinny mounts, it includes all necessary hardware for quick installation. Ideal for professionals and enthusiasts seeking a durable, customizable mounting solution with a sleek black finish.

Specifications

ASIN	B01EP5FKBY
Best Sellers Rank	#64,429 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #163 in Sporting Optics Mounts
Brand Name	Crotek
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (175)
Date First Available	April 23, 2016
Item Dimensions LxWxH	0.83 x 0.38 x 10 inches
Item Package Dimensions L x W x H	9.3 x 3.4 x 1.4 inches
Manufacturer	BESTBECAR
Material	Aluminum
Model Name	Long picatinny Rail Mount
Package Weight	0.14 Kilograms
Part Number	Picatinny Rail
Size	10 inch
Style	Long rail
Warranty Description	one year warranty

Reviews

C**R

15.03.2026

A**N

21.11.2025

C**R

14.10.2025

T**Y

18.04.2025

B**E

4.04.2026

T**E

23.01.2020

W**A

4.05.2025

S**K

14.05.2019

A**R

13.04.2023

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