LCT AKMS (LCKMS) Steel Folding Stock Button

LCT steel AKMS underfolding stock hinge

This expert product description was prepared by the ANAREUS.cz expert team. All rights to this unique content are bound to the anareus.cz domain.LCT steel AKMS underfolding stock hinge is an original replacement component for the mechanism used on airsoft AKs with the characteristic stock that folds underneath the gun. The hinge connects the stock to the gun and forms an important part of its folding mechanism. It is primarily designed for LCT LCKMS, LCK47S, M70 Zastava and other structurally compatible LCT models. Thanks to its steel construction, it matches the robust design of these guns and is suitable for repairing a worn or damaged mechanism, restoring an older AK or completing missing external parts. When selecting the correct part, it is important to distinguish between the different AK folding stock systems. PK-221 is not a hinge for AKS-74 / AKS-74U-style side-folding stocks, which use a different design. The LCT PK-172 hinge is intended for compatible models with a side-folding mechanism. On AKs from other manufacturers, such as CYMA or E&L, dimensions, pins and mechanism geometry may differ, so compatibility with the PK-221 cannot be guaranteed.

Key features of the LCT AKMS / LCKMS stock hinge

For AKMS underfolding stocks

The hinge is designed for the specific AK construction in which the metal stock folds downwards and then underneath the receiver, typically found on the AKMS platform.

Robust steel construction

The hinge is made of steel, matching the robust construction of the folding mechanism and the realistic design of LCT external parts.

For LCKMS, LCK47S and M70

Primarily designed for LCT LCKMS, LCK47S, M70 Zastava and other compatible LCT AKs using the corresponding underfolding stock system.

For folding mechanism repairs

Suitable as a replacement part for a damaged or worn original hinge, as well as for restoring or completing the underfolding stock of a compatible AK.

Not interchangeable with a side-folding stock hinge

AKS-74 and similar models with side-folding stocks use a different mechanism. The PK-172 hinge is intended for compatible side-folding LCT AKs.

LCT AKMS underfolding stock hinge

Steel underfolding stock hinge for LCT LCKMS, LCK47S, M70 Zastava and other compatible AKs.

Technical specifications

• Manufacturer: LCT Airsoft
• Model: PK-221
• Type: Hinge / underfolding stock mechanism component
• Platform: AKMS / LCKMS and compatible AKs
• Material: Steel
• Weight: 41.8 g
• Stock type: Underfolding stock that folds beneath the receiver
• LCT compatibility: LCKMS, LCK47S, M70 Zastava and other LCT models with the corresponding stock mechanism
• Other manufacturers: Compatibility with CYMA, E&L and other brands cannot be guaranteed
• Not compatible with: AKS-74, AKS-74U and other models with a different side-folding stock mechanism
• Intended use: Replacement external part for airsoft guns

Package contents

• 1× LCT steel AKMS underfolding stock hinge (PK-221)

Frequently asked questions from our store

How do I know which stock hinge I need?

The deciding factor is the type of stock folding mechanism. The PK-221 is designed for AKMS-style construction, where the stock folds underneath the receiver. The PK-172, on the other hand, is intended for compatible LCT AKs with a side-folding stock, typical of the AKS-74 family. The two parts are therefore not interchangeable.

Does the PK-221 fit the LCT LCKMS and LCK47S?

Yes. The PK-221 is designed specifically for LCT AKs with the corresponding underfolding stock system, including the LCKMS, LCK47S, M70 Zastava and other structurally compatible models.

Is this hinge suitable for the AKS-74 or AKS-74U?

No. These models use a different system in which the stock folds to the side along the receiver. The PK-172 hinge is designed for compatible side-folding LCT models.

Can I install the hinge on a CYMA or E&L AKMS?

A similar external appearance does not necessarily mean that the stock mechanism uses the same construction. Compatibility of the PK-221 with AKs from other manufacturers therefore cannot be guaranteed. The dimensions of the hinge, pins, locking mechanism and receiver may differ, and installation may require modifications.