Your basket is empty.

Basket

Help and contact

Free standard delivery over £199

100-day return policy

Newsletter

Sale

Over 300,000 customers - we say thank you!

4.93/5 "Very good" (1400+ reviews)

40,000+ products for hunting and shooting sports

The KAC URX III & 3.1 Forend offers a lightweight, modular design with short M1913 Picatinny rails, ambidextrous QD sling sockets, and a sleek free-floating profile.

KNIGHTS ARMAMENT AR15 URX 3.1 FOREND 13.5"

819064010463 100015199

Attributes

Application Type: -
Colour:
```
Black
```
Consumable Commodity: -
Expertise Required: -
Length:
```
13.5
```
Market Tier: -
Material:
```
Aluminum
```
Style:
```
Picatinny
```
Type:
```
Free Float
```
Weapon type:
```
AR-15
```
Delivery weight: 0.454kg
Shipping height: 99mm
Shipping width: 104mm
Shipping length: 363mm
UPC: 819064010463

Item details

Made in USA
US export classification: 0A501.y.1

Specifications:
Color: Black
Length: 13.5
Make: AR-15
Material: Aluminum
Style: Picatinny
Type: Free Float

479.9 479.9 1 GBP

479.9 GBP £479.90

Prices inclusive of duty & VAT.

Product no.: 100015199

Mfr. No.: 30325

819064010463 The KAC URX III & 3.1 Rail is a free floating, fully modular replacement forend for the AR-15 platform. Unlike traditional quad rail designs, the URX 3.1 incorporates short sections of M1913 Picatinny rail at its front and rear ends for mounting tactical accessories, eliminating the commonly unused sections of rail for reduced overall weight and a more comfortable grip. A total of 4 integral QD sling swivel sockets are provided for ambidextrous sling compatibility. Available in 8"or 13.5" lengths. Disassembly of the rifle’s gas system and removal of the factory barrel nut will be necessary. This forend uses a proprietary barrel nut that MUST be installed using a KAC URX Barrel Nut Wrench (PN: 20495, Sold Separately). For AR-15/SR-15 based platforms only; not compatible with SR-25 variants. Installation instructions, barrel nut and hardware are included.

Backorderable

10+

£479.90

Prices inclusive of duty & VAT.

10+

Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy

Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy

No charges until we ship

No charge:
Your credit card will not be charged when you place your order.

No commitments:
You are under no obligation until the goods are shipped. You can cancel your order at any time before shipping - free of charge.

Not until shipping:
Your credit card will only be charged once we ship your order. Not before.

Modular design for customization
Lightweight for improved handling
Ambidextrous QD sling sockets

Wish List Ask question

479.9 479.9 1 GBP

Description Specification Customers reviews Accessories

KNIGHTS ARMAMENT AR15 URX 3.1 FOREND 13.5"

479.9 GBP £479.90

Prices inclusive of duty & VAT.

10+

£479.90

Prices inclusive of duty & VAT.

10+

Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy

Description:

Upgrade your AR-15 with the KAC URX III & 3.1 Forend for enhanced modularity and comfort.

The KAC URX III & 3.1 Rail is a free floating, fully modular replacement forend designed specifically for the AR-15 platform. Unlike traditional quad rail designs, the URX 3.1 features short sections of M1913 Picatinny rail at both the front and rear ends, allowing for the easy mounting of tactical accessories. This innovative design eliminates commonly unused sections of rail, resulting in a reduced overall weight and a more comfortable grip.

For added versatility, a total of 4 integral QD sling swivel sockets are provided, ensuring ambidextrous sling compatibility. The forend is available in two lengths: 8" and 13.5".

Important Installation Note: Disassembly of the rifle’s gas system and removal of the factory barrel nut will be necessary for installation. This forend requires a proprietary barrel nut that MUST be installed using a KAC URX Barrel Nut Wrench (PN: 20495, sold separately). Please note that this product is designed for AR-15/SR-15 based platforms only and is not compatible with SR-25 variants.

Specifications:

Fits: AR15/M16 rifles
Free Float
Material: Aluminum
Finish: Black Anodizing
Weight: 8" - 8.6 oz; 13.5" - 13.8 oz

Installation instructions, barrel nut, and hardware are included with your purchase.

Attributes

Application Type: -
Colour:
```
Black
```
Consumable Commodity: -
Expertise Required: -
Length:
```
13.5
```
Market Tier: -
Material:
```
Aluminum
```
Style:
```
Picatinny
```
Type:
```
Free Float
```
Weapon type:
```
AR-15
```
Delivery weight: 0.454kg
Shipping height: 99mm
Shipping width: 104mm
Shipping length: 363mm
UPC: 819064010463

Item details

Made in USA
US export classification: 0A501.y.1

Customers reviews

Customer ratings (0)

0 / 5

Oops! Something went wrong.

We encountered an error while loading this content. Please refresh the page to continue. If the issue persists, contact our customer support.

Site Navigation

Product Categories

Ordering

Customer Service

Connect

Secure payment methods

Trade Associations

Welcome!

to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.

Whether you're looking to maintain, repair, or upgrade, we've got what you need!

For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.

Massive Selection
From the essentials to the unique, find everything under one roof.

Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.

Browse our collection and discover why we're the trusted name in shooting sports & hunting.