Your basket is empty.

Basket

Help and contact

Free standard delivery over £199

100-day return policy

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 Colt AR6721 Receiver Extension is a collapsible design that enhances versatility and ease of use, fitting AR-15 Accurized HBAR, Carbine, and Government Carbine models.

-13 %

COLT AR6721 RECEIVER EXTENSION

160307105

Attributes

Model:
```
AR-15
```
,
```
AR-15/M4
```
,
```
M16
```
Style:
```
Carbine
```
,
```
Mil-Spec
```
Weapon type:
```
Colt
```
,
```
AR-15
```
Delivery weight: 0.068kg
Shipping height: 23mm
Shipping width: 56mm
Shipping length: 183mm

Item details

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

Specifications:
Make: Colt, AR-15
Model: AR-15/M4, M16, AR-15
Style: Mil-Spec, Carbine

69.9 69.9 1 GBP

-13 %

MSRP £79.90

69.9 GBP £69.90

Prices inclusive of duty & VAT.

Product no.: 160307105

Mfr. No.: 9390019RECEIVE

Receiver Extension, Collapsible

In stock More than 10 pieces in USA warehouse

10+

-13 %

MSRP £79.90

£69.90

Prices inclusive of duty & VAT.

10+

Delivery time approx. 7-14 days.

100-Day Return Policy

Delivery time approx. 7-14 days.

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.

Collapsible design for versatility
Compatible with various AR-15 models
Durable Colt construction

Wish List Ask question

69.9 69.9 1 GBP

Description Specification Customers reviews Accessories

COLT AR6721 RECEIVER EXTENSION

-13 %

MSRP £79.90

69.9 GBP £69.90

Prices inclusive of duty & VAT.

10+

-13 %

MSRP £79.90

£69.90

Prices inclusive of duty & VAT.

10+

Delivery time approx. 7-14 days.

100-Day Return Policy

Description:

FITS: AR-15 Accurized HBAR; AR-15 Carbine; AR-15 Government Carbine

Receiver Extension, Collapsible

Attributes

Model:
```
AR-15
```
,
```
AR-15/M4
```
,
```
M16
```
Style:
```
Carbine
```
,
```
Mil-Spec
```
Weapon type:
```
Colt
```
,
```
AR-15
```
Delivery weight: 0.068kg
Shipping height: 23mm
Shipping width: 56mm
Shipping length: 183mm

Item details

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

Customers reviews

Customer ratings (0)

5 / 5

Customers also bought

COLT

AR6721 RECEIVER EXTENTION NUT

Buffer Tube Hardware

4.5

Backorder

£23.90

COLT

BARREL NUT ASSEMBLY FOR AR-15 STEEL BLACK

Barrel Nuts

Backorder

£42.90

COLT

AR15A4 CHARGING HANDLE ASSEMBLY

Charging Handles

Backorder

£94.90

-10 %

+ 3 variants

PRECISION REFLEX

GAS BUSTER CHARGING HANDLE W/FLAT LATCH
AR-15/M16 GAS BUSTER CHARGING HANDLE

Charging Handles

In stock

£154.90

£139.90 £139.90 - 154.90

(Select Items on Sale!)

Alternative items

-10 %

D.S. ARMS

RECEIVER EXTENSION TUBE

Not available

+ 2 variants

DOUBLE STAR

MIL-SPEC BUFFER TUBE ASSEMBLY
AR-15/M16 BUFFER TUBES

Buffer Tubes

4.3

Backorder

£54.90

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!

Welcome to Odos!

Your European partner for shooting sports, hunting and legal firearm ownership. We share your passion and offer a huge selection of firearms, parts, accessories, gunsmithing tools, optics and reloading equipment, including many products that are hard to find elsewhere in Europe.

Our mission goes beyond selling products. We want to strengthen legal firearm ownership, remove unnecessary barriers and grow our community.

For Shooters, By Shooters

We're part of the community ourselves. We share your passion and understand what matters to you.

Huge Selection

From everyday replacement parts to rare specialist equipment, you'll find everything you need in one place.

Decades of Experience. A New Name.

Formerly Midway Europe, then Brownells Europe, now Odos. Since the 1990s, we've stood for expertise, experience and a passion for firearms.

Explore our selection and support our mission to strengthen legal firearm ownership in Europe with every purchase.

Odos. Our Way Forward.