- Steel construction
- For M4/AR-15 barrel & castle nut
- Swap handguards with ease!
If you plan to customise your M4/AR-15, the S&T M4/AR-15 Barrel Nut Tool is essential! Made from robust steel, this combination tool provides a wrench for removing barrel nuts at one end and a second wrench for castle nuts at the other.
This allows you to change your M4/AR-15 handguard, switching between free-floated handguards, delta-ring-mounted handguards, and more. It also allows you to swap outer barrels, meaning you can turn your CQB build into a DMR and back again, or create the perfect custom build. The castle nut wrench makes fully disassembling a GBBR or accessing a true quick-change spring system far easier, allowing you to rotate the castle nut without marring the finish using pliers, pipe wrenches or other improvised tools.
Removing an M4 barrel nut is borderline impossible without one of these tools; if you plan to switch out your AR handguard in the future, make sure you've got a barrel nut tool (aka, armourers' wrench) like this handy! If you want to open up a new realm of custom-built opportunities, the S&T M4/AR-15 Barrel Nut Tool belongs in your toolbox!
Fast Delivery
Delivery & Postage
Here at Patrol Base, we send all our packages from our Warehouse based in the UK with the exception of European Warehouse Items. All of our parcels are sent with specially picked couriers to ensure your parcels get to you on time and in one piece.
For more information please check out our Delivery Information Page.
Estimates
Below are some rough postage prices for orders. Please note these are subject to change and are only a rough guide. For a more accurate postage estimate please use the Postage Calculator at the basket.
UK 3-5 day Standard
£6.95
From
Dispatched with 24hr UK mainland
£8.95
From
Highlands / Islands
£24.99*
From
* Please note that Scottish Highlands, and Islands postage prices can vary wildly. Please refer to the Postage Calculator at the basket for the lowest possible price.
Returns
We want you to be absolutely happy with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.
You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.
For more information on returning products, and how to do it please visit our Returns Policy Page.
Description
Features
- Steel construction
- Compatible with most M4/AR-15 barrel nuts - Allows you to swap handguards & outer barrels
- Compatible with GBBR/AEG removable castle nut - Swap buffer tubes with ease
- Essential for customisation - All M4/AR-15 builders need this!
Package Includes
- S&T Armament M4/AR-15 Barrel Nut Tool
Specification
General
Parts & Accessories Type | Tools and Chronographs |
|---|---|
 | No |
Weight and Dimension
 | Approx.0.8KG |
|---|
Construction
 | Black |
|---|---|
 | Steel |
 | Steel |