PTS Syndicate Kinetic SAS Scar Adaptable Stock Kit Black

The PTS Kinetic SAS SCAR Adaptable Stock Kit Black is an adjustable and side-folding stock upgrade for specific VFC SCAR-H GBB and Guns Modify SCAR-L GBB replicas. The kit replaces the standard SCAR stock with the PTS Masada stock system, featuring seven length settings, an adjustable cheek riser and a stiffer aluminium adapter.

A standard SCAR stock does not provide every shooter with a natural reach to the trigger, grip and sight. This is particularly noticeable during rapid target transitions, when switching between standing and kneeling positions, and when a plate carrier increases the effective length of the replica. The SAS Stock Kit allows for more precise adjustment of the shoulder position, ensuring that the SCAR returns more consistently to the same line of fire.

Greater control thanks to an adjustable shooting stance

The PTS Masada Folding Stock has seven telescopic positions. This allows you to adjust the length of pull to suit your arm length, clothing and equipment. When wearing a plate carrier, a shorter setting is generally more comfortable, as the shoulder straps and plates push the replica further forwards. Without armour, a longer setting can actually provide more support and a more stable shooting stance.

The benefit is not simply a matter of ‘greater adjustability’. An incorrectly adjusted stock forces the shooter to lean their head forward or stretch their dominant arm unnecessarily. This slows down target acquisition and means that the replica sits slightly differently every time it is shouldered. A correctly adjusted stock length helps to ensure that grip pressure, eye position and the way the rifle rests against the shoulder remain consistent.

During CQB, the stock can be adjusted to a compact position for quicker weapon handling around doors and barricades. During outdoor skirmishes and milsim events, a longer stock provides greater support when firing controlled shots from a fixed position.

Adjustable cheek riser for a consistent eye line

The cheek riser can be adjusted to the height of the sight being used. This is particularly relevant for red dot sights on raised mounts or when a full-face mask affects the position of the cheek. The riser supports a firm cheek weld, allowing the aiming point to appear more quickly in the centre of the field of view.

This is often overlooked when upgrading a stock: a high cheek riser isn’t automatically better. If it’s too high for the scope, you’ll actually have to apply downward pressure, or the replica will tilt when aiming. You should therefore adjust the stock length first, shoulder the replica several times with your eyes closed, and only then adjust the cheek rest to your natural line of sight.

Foldable without a separate or flexible structure

The stock folds in sideways and is held in place by a spring-loaded locking mechanism. When folded, the SCAR becomes more compact for transport and easier to handle in vehicles, narrow passageways or a small replica case. For actual shooting, however, the unfolded position remains the logical choice: only then is a stable connection established between the replica, the shoulder and the hands.

The SCAR adapter supplied is made from 6000-series aluminium. This component is more important than it might appear on paper. The adapter absorbs the leverage that occurs when the replica is pressed firmly against the shoulder. An adapter with noticeable flex directly results in movement of the cheek rest and a less predictable aiming position.

The kit is supplied fully assembled. This means you don’t have to hunt around for a separate Masada stock, hinge parts and adapter.

Compatibility: check the exact platform

This version is specified for:

• VFC SCAR-H GBB: for direct fitting to compatible gas-blowback models.
• Guns Modify SCAR-L GBB: suitable for the relevant SCAR-L GBB platform.
• PTS Masada stock system: included and pre-fitted to the SCAR adapter.
• Reversible QD connector: the QD cup can be positioned on the left or right for connection to the sling configuration.

“SCAR-compatible” does not, by any means, mean that the kit will fit every SCAR replica. AEG versions, other GBB manufacturers and different receiver generations may require a different mounting method, wiring or stock interface. You should therefore check the make, model and power source before ordering. Furthermore, for an AEG with a battery in the stock, this conversion may affect the available battery space.

Behaviour within a complete SCAR loadout

This stock is at its best in a SCAR build where the optic height, sling position and shoulder contact are all aligned. Combine the adjustable cheek riser with a red dot or low-power optic whose mount is not unnecessarily high. An optic mount that is too high, combined with the cheek riser set to its maximum height, can create an unnatural head position, particularly when wearing a mesh mask or ear protection.

The QD cup can be used on either side. A right-handed shooter often chooses the left-hand side, but the best position depends on whether a one-point or two-point sling is used. When the stock is folded down, check that the sling does not get caught between the hinge and the receiver. Sling interference can slow down the unfolding process and place additional strain on the attachment point.

The stock also alters how the replica feels in terms of weight. It doesn’t suddenly make a front-heavy SCAR feel light, but a better shoulder position does provide greater mechanical control over the weight at the front. This difference is most noticeable with longer rails, an LPVO, a weapon light or a mock suppressor.

Who is this stock upgrade intended for?

The PTS Kinetic SAS Stock Kit is of interest to SCAR users who want to fine-tune their shoulder position and regularly play with varying equipment. This includes players who combine CQB with outdoor gameplay, wear a plate carrier, or use a sight for which the standard cheek rest is not ideally positioned. This advantage also comes into its own during longer milsim events: reduced strain on the wrist and shoulder helps you carry the replica in a controlled manner for longer.

If you use the SCAR purely for recreational purposes, the standard stock already fits you well and you have no issues with the sight line, then a simpler stock won’t offer any immediate performance benefit, and you’d be better off spending your budget on a suitable sling or a reliable optic.

This PTS version is particularly relevant when play, locking and adapter rigidity are important factors. Cheaper conversions may appear to work well, but flex around the adapter or telescopic adjustment quickly becomes noticeable during intensive use. With PTS, you’re not just paying for the design, but above all for a stiffer interface and more adjustable shoulder support.

Common mistakes during assembly and adjustment

Do not fit the adapter without checking that the contact surfaces are flush. Tightening it at an angle can put strain on the adapter and cause play later on. Check the fitting again after the first day of play, as repeated recoil impulses from a GBB and the folding and unfolding of the stock can cause the mounting parts to shift.

Also, don’t set all the components to their maximum settings straight away. A stock that’s too long slows down the transition to the weak side, whilst a cheek riser that’s too high blocks your natural line of sight. Start off with a compact setup, test the replica with your full loadout, and then adjust the length for each shooting position.

Key features

• Seven telescopic positions: adjusts the stock length to suit your build, plate carrier and shooting stance.
• Adjustable cheek riser: ensures a consistent line of sight through red dot sights and other optics.
• Side-folding design: reduces the size of the replica for transport and manoeuvring in confined spaces.
• 6000-series aluminium adapter: reduces flex at the connection point when the stock is under shoulder pressure.

Frequently Asked Questions

Does this stock kit fit any FN SCAR airsoft replica?
No. The listed compatibility includes VFC SCAR-H GBB and Guns Modify SCAR-L GBB models. Do not rely solely on the name ‘SCAR’; always check the manufacturer, model variant and power source.

Is the PTS Masada stock included?
Yes. The kit includes the PTS Masada Folding Stock and is supplied fully assembled with the SCAR adapter.

Can I use the stock with a plate carrier?
Yes. The seven length settings allow you to adjust the stock to a shorter length when shoulder straps and plates create extra space. Always test the setting whilst actually wearing the plate carrier.

On which side is the QD sling attachment located?
The QD cup can be fitted on either side of the stock. Choose the side on which the sling hangs freely and does not interfere with the folding mechanism or the replica’s controls.

Is this upgrade primarily intended for CQB or outdoor use?
For both, but for different reasons. CQB players benefit from the compact design and quicker handling; outdoor and milsim players benefit more from the adjustable shoulder rest and cheek rest during prolonged use.

Check the model compatibility of your GBB SCAR and choose the PTS Kinetic SAS SCAR Adaptable Stock Kit Black if you’re looking for a stiffer, more precisely adjustable shoulder interface.