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

Upgrade your AR-15 with the SHOULDERLESS THREAD ADAPTER 1/2-36 to 5/8-24. 🛠️ Achieve precise alignment and a sleek look!

8-24 STAINLESS STEEL

100012978

Top takeaways

Machined from pre-hardened, stainless steel bar stock for durability and longevity.
Enables the attachment of 5/8-24 muzzle devices to a 1/2-36 threaded barrel with a streamlined appearance and accurate alignment.
All threads are single point cut to UNEF Class-3 tolerances, ensuring perfect concentricity and alignment.

Attributes

Finish: Stainless Steel
Make: AR-15
Threads: 1/2-36 TO 5/8-24
Delivery weight: 0.009kg
Shipping height: 3mm
Shipping width: 25mm
Shipping length: 51mm

Item details

Made in USA
US export classification: 0A501.x

Specifications:
Finish: Stainless Steel
Make: AR-15
Threads: 1/2-36 TO 5/8-24

29.9 29.9 1 GBP

29.9 GBP £29.90

Prices inclusive of duty & VAT.

Product no.: 100012978

Mfr. No.: A02412

Machined from pre-hardened, stainless steel bar stock, this shoulderless thread adapter permits muzzle devices to sit tighter against the barrel shoulder and maintain full thread joint strength. Adapter screws fully into muzzle device, giving it a more streamlined appearance when fitted onto the barrel and ensuring a more accurate alignment to bore. All threads are single point cut in same operation to tight UNEF Class-3 tolerances for perfect concentricity and alignment. Allows attachment of 5/8-24 muzzle devices to a 1/2-36 threaded barrel.

In stock

Delivery time approx. 7-14 days.
5 pcs. in the USA warehouse

Wish List Ask question

Specifications:
Finish: Stainless Steel
Make: AR-15
Threads: 1/2-36 TO 5/8-24

Description:

Top takeaways

Machined from pre-hardened, stainless steel bar stock for durability and longevity.
Enables the attachment of 5/8-24 muzzle devices to a 1/2-36 threaded barrel with a streamlined appearance and accurate alignment.
All threads are single point cut to UNEF Class-3 tolerances, ensuring perfect concentricity and alignment.

Attributes

Finish: Stainless Steel
Make: AR-15
Threads: 1/2-36 TO 5/8-24
Delivery weight: 0.009kg
Shipping height: 3mm
Shipping width: 25mm
Shipping length: 51mm

Item details

Made in USA
US export classification: 0A501.x

Customers reviews

Customer ratings (1)

5 / 5

Definitely recommended

Works on Colt 7.62x39 11/04/2015

A little pricey, but needed to get a decent flash suppressor on there. It is a little longer than the existing threads, which is good. It also adds no length to the barrel and virtually no weight.

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.