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

Enhance your AR-15/M16 performance with the Rubber City Armory Adjustable Gas Key, featuring easy gas flow adjustments and durable Pre-Hardened 4140 construction.

RUBBER CITY ARMORY ADJUSTABLE GAS KEY

100015575

Restrictions

Is a 'Call to order' product.

Top takeaways

The Rubber City Armory Adjustable Gas Key allows for easy adjustment of gas flow in AR-15/M16 systems without disassembly.
Included with the gas key are 2 set screws for adjusting and securing gas flow, and 2 mounting bolts for installation.
Constructed from Pre-Hardened 4140 steel with a hardness of 28-32RC, it features radiused corners to minimize sharp edges.

Attributes

Weapon type:
```
AR-15
```
Delivery weight: 0.009kg
Shipping height: 16mm
Shipping width: 57mm
Shipping length: 102mm

Item details

Made in USA
US export classification: 0A501.x

Specifications:
Make: AR-15

59.9 59.9 1 GBP

59.9 GBP £59.90

Prices inclusive of duty & VAT.

Product no.: 100015575

Mfr. No.: 1AD-GKY

The Rubber City Armory Adjustable Gas Key enhances performance of low mass and standard mass GI systems without unnecessary disassembly. Gas flow is adjusted and maintained at the carrier with 2 set screws, one to adjust gas flow and one to lock it in place. Made from Pre-Hardened 4140: 28-32RC with radiused corners reducing sharp edges. 2 mounting bolts included.

Not available

Not available.

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.

Wish List Ask question

order by phone

59.9 59.9 1 GBP

Description Specification Customers reviews Accessories

RUBBER CITY ARMORY ADJUSTABLE GAS KEY

59.9 GBP £59.90

Prices inclusive of duty & VAT.

Is a 'Call to order' product.

Requires order by phone

Description:

Enhance Your AR-15/M16 Performance with Precision

The Rubber City Armory Adjustable Gas Key is designed to improve the performance of both low mass and standard mass GI systems without the need for unnecessary disassembly. This innovative gas key allows for precise adjustments to gas flow, ensuring optimal operation of your firearm.

Key Features:

Adjustable Gas Flow: Easily adjust and maintain gas flow at the carrier using two set screws—one for adjustment and the other to lock it in place.
Durable Construction: Made from Pre-Hardened 4140 steel with a hardness rating of 28-32RC, ensuring long-lasting durability.
Safety First: Radiused corners reduce sharp edges for enhanced safety during handling.
Easy Installation: Comes with 2 mounting bolts for hassle-free installation.

Upgrade your firearm with the Rubber City Armory Adjustable Gas Key and experience the difference in performance and reliability.

Restrictions

Is a 'Call to order' product.

Top takeaways

The Rubber City Armory Adjustable Gas Key allows for easy adjustment of gas flow in AR-15/M16 systems without disassembly.
Included with the gas key are 2 set screws for adjusting and securing gas flow, and 2 mounting bolts for installation.
Constructed from Pre-Hardened 4140 steel with a hardness of 28-32RC, it features radiused corners to minimize sharp edges.

Attributes

Weapon type:
```
AR-15
```
Delivery weight: 0.009kg
Shipping height: 16mm
Shipping width: 57mm
Shipping length: 102mm

Item details

Made in USA
US export classification: 0A501.x

Customers reviews

Customer ratings (3)

4.3 / 5

Definitely recommended

Excellent Product 31/07/2015

I ordered this product for my suppressed 16" 300blk. The first time I ordered the product, it arrived with the bag cut (where the parts are) and a small piece of tape to cover it. I was missing one mounting bolt and all of the set screws. I returned it (Brownells made it right in a hurry) and received the replacement. This one had all of the pieces. The finish of the part is done well and is smooth to the touch. There aren't any instructions on how to install it but it is pretty straightforward. I thoroughly degreased the parts and placed a thin layer of red Loctite around the gas port and set the key in place. I also used a small amount of red Loctite on the mounting screws and torqued them to 58 in/lbs. I then put a quick shot of air through the key to make sure the hole was clear and let it set up for 24 hours. I did not stake it, as I was not sure if I was going to like it.

After the Loctite was good and set up, I took the gun out to the range to see how it worked. I am shooting 110gr Varmageddons with 19.5gr of W296, at about 2400 ft/s (Carbine gas) and an AAC Cyclone suppressor. I started with the set screw all the way in the closed position and placed one round in the magazine and fired. To my surprise the case was ejected at about 3-4 o'clock and about 5 feet away. The bolt did not lock back. I tried this several more times with the same result so it doesn't appear that one would be able to shut the gas all the way with a supersonic load. Recoil was drastically reduced from how the gun ran previous, which would slam the bolt back hard and throw brass directly behind me and over 20 feet away.

I backed out the adjustment screw 1/2 a turn and repeated. Same ejection and recoil, no bolt lock back. Another 1/2 turn, and the bolt locked back. I backed the screw out another 1/4 turn and put the locking screw in on top of it (no Loctite). I then fired the weapon approximately 30 times and checked the set screws. There was 0 movement but time will tell whether I will need to put some blue Loctite on or not.

Overall this is a good product. It is easy to adjust and comes with one extra set screw and one adjustment wrench. It does come with a little Rubber City Armory logo decal. It is very cheap looking but that is not really a big deal.

Now some may be concerned with where the gas goes. It goes in the receiver as my gun was a little dirtier than normal after the small amount of firing that I did. This did not affect how the rifle ran, as I had no malfunctions. Now I will go ahead and get those screws staked in.

Recommended with reservations

Great Idea. 09/04/2015

Gas control screws had to be reset repeatedly.

Even with the set screw there were problems keeping it where I wanted it. Once it was adjusted the adjustment changed when you tightened the locking screw.

Customers also bought

-9 %

CMMG

BOLT REHAB PARTS KIT FOR AR-15 /M16

In stock

£54.90

£49.90

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!

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.