What is the difference between square and round heads

The nut holds the rail to the handguard of the weapon. Where as the rounded head of the bolt seats recessed in the rail to maintain clearance for any picatinny accessories.

Would this fit on an m&p 15? s&w

This rail system fits on any M-LOK handguard. If it has a M-LOK handguard then it will fit.

Will this fit a S&W .357 revolver short barrel?

I would say no. unless your revolver is drilled and tapped to accept picatinny rails

What is the center to center screw holes dimensions?

There are several pieces with varying sizes the smallest still has 2 screw points they are very versatile I applied all but 3 pieces to my weapon and have not had any issue with loosening etc.

Bontok Single Picatinny Aluminum Accessory Rail Set For Mlock 3

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

48629CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

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Description

Review: Good stuff. - Accurate description, great product, great price, super fast shipping makes for a happy buyer. Review: The square ends... - Works exactly as it should and saved prolly saved some mulah in the process... These are exact as the mags or any of the other name brands... Get um... You wont be disappointed...

Reviews

A**R

Good stuff.

Accurate description, great product, great price, super fast shipping makes for a happy buyer.

15.05.2026

A**N

The square ends...

Works exactly as it should and saved prolly saved some mulah in the process... These are exact as the mags or any of the other name brands... Get um... You wont be disappointed...

20.06.2026

A**G

Great item

Good material well constructed

1.06.2026

P**G

Perfect fit

This was actually what I was looking for and easy to attach.

3.12.2025

M**D

Great selection at a great price.

Good selection of lengths, more than what I needed. I have an sbr that I wanted to mount a laser/ flashlight combo so I only needed the 2", which worked perfectly. Great price too.

19.03.2026

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TrustScore 4.5 | 7,300+ reviews

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48629CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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1 week ago

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2 weeks ago

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ASIN	B08YYMMX8G
Batteries included?	No
Brand	Bontok
Customer Reviews	4.7 4.7 out of 5 stars (5,493)
Date First Available	21 Feb. 2025
Product Dimensions	196 x 68 x 10 cm; 209 g

Bontok Single Picatinny Aluminum Accessory Rail Set for Mlock 3 5 7 9 11 13 Slots with 13 T-Nuts & Screws, 6 Allen Wrench- Squared Corner

Description

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Reviews

Common Questions