How To Install Foam In The Silverback VKS Suppressor | Full Size + Dus

Quick Answer

The Silverback VKS suppressor does not come with foam. You install it yourself using the VKS Silencer Foam Kit. Here's the full step by step for the full size suppressor, what tools you need, and a dust cover tip.

What You Need

Full size suppressor: 2 VKS Silencer Foam Kits
Half size suppressor: 1 VKS Silencer Foam Kit
Needle nose pliers — for the initial cap screw unscrew
Punch tool — only needed if doing the dust cover flip
Wrench — for removing the orange tip on US versions

Step 1 — US Version: Remove The Orange Tip First

If you purchased your VKS from the US it ships with an orange tip. You need to remove it before installing foam.

Take apart the receivers and pull out the barrel
Clamp the orange tip and twist — it will come off
Use a wrench if needed — apply steady pressure and it will release

Step 2 — Open The Suppressor Cap

The suppressor cap is held by three screws. Use needle nose pliers to break them loose — approach from the side or top like a fork. Once loose, finish by hand.

Step 3 — Install The Foam

The VKS Silencer Foam Kit comes in two sizes — small and large. Alternate them: big, small, big, small. Keep alternating until the suppressor is filled.

Step 4 — Close The Cap

Push the cap back down firmly. Screw the three screws back in — ⚠️ hand tight only. Do NOT overtighten or you will crack the suppressor.

Bonus — Dust Cover Tip

Flipping the dust cover arm down disconnects it from the bolt and closes the ejection port — seals the system against dirt, mud, and sand in heavy ops environments. The bolt still cycles normally with the port closed.

Important: The grinding sound at the rear is the cylinder on the receiver — not the dust cover. Flipping it does not eliminate that sound.

How to flip:

Remove the magazine
Remove body pins with a punch tool — long pin to the front
Separate upper and lower receivers
Remove internal mechanisms to access the dust cover
Flip the dust cover arm down
Reassemble in reverse — gun must be in fire position before reinserting internals
Reinsert pins — long pin to the front

Shop VKS + Foam Kits

Item	Link
Silverback VKS	Shop here
VKS Full Size Suppressor	Shop here
VKS Half Size Suppressor	Shop here
VKS Silencer Foam Kit	Shop here
VKS Magazine 63 Rounds	Shop here
Full Silverback Collection	Shop here

Free shipping on US orders over $200.

FAQ

How much foam do I need?
Full size — 2 VKS Silencer Foam Kits. Half size — 1 VKS Silencer Foam Kit.

Does foam come with the suppressor?
No — purchase the VKS Silencer Foam Kit separately.

Do I need to remove the orange tip first?
Yes for US versions. Take apart the receivers, pull out the barrel, clamp and twist the orange tip off.

How tight should the cap screws be?
Hand tight only — overtightening will crack the suppressor.

What is the dust cover flip?
Flipping the dust cover arm down closes the ejection port. Seals against dirt and debris. Does not reduce the grinding sound from the bolt mechanism.