5KU AB-8 RIS (1913) Folding Stock - Black

5KU AB-8 Folding Stock for 1913 RIS Mounts

The 5KU AB-8 Folding Stock is a smart upgrade for players building a modern, lightweight, and compact rifle setup. Designed for 1913 RIS stock mounts, this minimalist stock combines a rigid metal structure with low overall weight, making it an excellent choice for custom airsoft builds, CQB platforms, and transport-friendly rifle configurations.

Its aluminum skeleton body keeps the profile slim and ergonomic without sacrificing strength, while the steel mounting base delivers a stable and secure lock-up on compatible rear rail interfaces. Whether you are tuning a compact PDW, upgrading a modern carbine, or refining a tactical rifle for faster handling, the AB-8 offers the balance of durability and agility serious players look for.

Built for compact, modern airsoft setups

One of the standout features of the 5KU AB-8 is its dual-side folding mechanism. The stock can fold to either the left or the right, giving maximum flexibility for storage, transport, and use with different rifle layouts. This makes it especially useful for players who want to reduce the footprint of their replica when moving through tight spaces, vehicles, or indoor CQB environments.

The clean skeletonized design also helps keep weight down at just 260 g, making it a strong option for fast-moving loadouts where every gram matters. The result is a folding airsoft stock that feels practical in the field, easy to shoulder, and ideal for streamlined rifle configurations.

Strong materials, secure fit

The AB-8 is built with premium metal construction for long-term durability. The aluminum body reduces unnecessary bulk, while the steel base reinforces the critical mounting area for improved strength and fit. This combination gives the stock a solid feel without turning your build into a heavy platform.

It fits directly onto 1913 Picatinny / RIS rear stock mounts, making it suitable for platforms such as the SIG MCX, GP Stribog, and other replicas using the same mounting standard. It is also compatible with 5KU RIS adapters for selected M4, MP5, AK, and similar custom builds, opening up even more options for players who want a modern folding stock upgrade.

Tactical utility on the field

For added practicality, the stock features an integrated QD sling socket, allowing fast installation of a quick-detach sling swivel. This is a valuable detail for players who run one-point or two-point sling setups and need fast transitions during dynamic game scenarios.

Installation is simple and user-friendly, making the 5KU AB-8 a great choice for players who want a lightweight airsoft folding stock that looks clean, feels solid, and performs well in both CQB and outdoor tactical builds.

Why choose the 5KU AB-8 Folding Stock?

• Lightweight skeleton design for improved handling and reduced bulk
• Folds to either side for easier storage and flexible setup options
• Steel 1913 mounting base for a secure and stable fit
• Integrated QD socket for fast sling attachment
• Ideal for custom airsoft builds on M4, MP5, AK, MCX, and other compatible platforms
• Minimalist tactical profile suited to modern rifle builds and compact replicas

Pair this stock with other external upgrade parts to complete your build, or add a compatible sling from our rifle slings and accessories collection for a more practical field setup.

Technical Specifications

Product	5KU AB-8 Folding Stock
Mount Type	1913 RIS / Picatinny rear stock mount
Function	Dual-side folding
Length	204 mm
Width	102 mm
Height	20 mm
Weight	260 g
Body Material	Aluminum
Base Material	Steel
Color	Black
QD Sling Socket	Yes
Compatibility	1913 stock mounts and 5KU RIS adapters for selected M4, MP5, AK platforms
Package Includes	5KU AB-8 Folding Stock