Gen II / Gen III ILWT MPX-type ‘CARBINE’ Barrels w/Gasblock

Description

Back in stock as of December 13, 2024

Add a Factory Sig MPX PCC 16″ hand guard for an extra $50.00 while supplies last with purchase of one of our carbine barrels. Option in drop down below, not available for purchase without carbine barrel.

For barrels equipped with the adjustable plug please see directions HERE
Five adjustment positions;
0.) No Gas
1.).0400
2.).0469
3.).0520
4.).0625
This adjusts with a simple turn of the plug. With either an allen wrench or adjustable/box wrench. When the number is at the 12:00 position that is the port size it is on

The plug insert is a consumable part and will erode over time as it is subjected to the hot chamber gasses which act as a type of plasma cutter. It will try to match the size of the port to the plug and erode the steel. this slows and still works as a funnel until eventually working all the way through. Erosion depends heavily on ammunition choice and suppression back pressure. There is not an alloy that I can machine that will prevent this

Gen-2 MPX-type replacement Drop-in Barrel & Gas Block assembly:

Barrel assemblies  are available in 10.5″, 12.5″ 14.5″ and 16.25″ with 1/2-28 concentric threads for suppressor use or attaching a muzzle brake/flash hider or other muzzle device of your choice Thread protector is included.
-Barrel twist rate is 1:10
-nitride finish

-Barrel weights are for assembled barrel with thread protector

16.25″ barrel weighs=1 LB 8.85 ounces
14.5″ barrel weighs=1lb 6.45 ounces
12.5″ barrel weighs=1lb 4.45 ounces
10.5″ barrel weighs=1lb 3 ounces

Please use drop-down menu for barrel length option, when ordering.

I do not accept returns on barrels due to liability and cannot sell them as new once they are shipped out and returned. If there is a function issue obviously I will make that right if it is due to my product. Please, please, please make sure the barrel length and configuration is the proper one for your platform. I want people to be happy with their purchase and get the proper barrel for their platform in the length that is best suited to their purpose. If unsure please contact me first and I can possibly help with identification and input.

We use the tightest of tolerances and highest quality control.
All barrels and gas-blocks are proudly made in the USA and engraved ILWT.I do not accept returns on barrels due to liability and cannot sell them as new once they are shipped out and returned. If there is a function issue obviously I will make that right if it is due to my product.

There is no additional cost for shipping it is included in the price of all listed parts.  Insurance is optional and separate, there is a box at the bottom of the checkout page where you can accept or opt out of the insurance.  ILWT cannot be responsible for lost or mishandled shipments once they are dropped to USPS. If you checkout without requesting insurance your item will be sent with only the amount afforded by USPS for your particular shipment which may not be anything for small items and up to $100.00 for some priority packages.Insurance will not let me file a claim if it is showing delivered so please make sure you put in the proper address or desire signature confirmation for an extra fee. By placing the order you acknowledge and accept this.

*As with any barrel swap, have a qualified gunsmith check head-spacing before firing.

If you have questions or wish to share information and have Facebook you can join this group HERE

DISCLAIMER: “MPX” is a federally registered trademark of SIG SAUER, Inc. and is one of many trademarks owned by SIG SAUER, Inc.
Neither ILWT, LLC nor this website are affiliated in any manner with, or otherwise endorsed by, SIG SAUER, Inc.
The use of “MPX” on this page is merely to advertise the sale of MPX type barrels, parts, or components.