1. Adapter for AKS / AKS-74U

- Stock axis diameter: 4.5 mm
- Designed for the folding tubed stocks of this family.
- Compatibility: PT-1, PT-1S, PT-3, PT-3S (unless otherwise noted).







| Adapter / Weapon model | Axis (mm) | Folding? | Compatible with PT-1 / PT-1S | Compatible with PT-3 / PT-3S |
|---|---|---|---|---|
| AKS / AKS-74U | 4.5 | Yes | Yes | Yes |
| AK (combat models, firing with folded stock) | 5.5 | Yes (supports firing) | Yes | Yes |
| Civilian carbines based on AK (no firing with folded stock) | 5.5 | No (fixed) | Yes | Yes |
| Saiga-9 | 5.5 | No | Yes | Yes |
| Ten?-19 | (per tech spec) | Depends on version | Yes | Yes |
| Fixed adapter for AKM (D16T alloy) | (AKM standard) | No | Yes (PT-1) | No (PT-3 / PT-3S incompatible) |
Note: Except for the fixed AKM adapter, other adapters are generally compatible with both types of stocks (PT-1 and PT-3) unless explicitly stated otherwise.
Adapters usually come with the stock, but you must indicate your weapon model clearly so the correct adapter is included.
Always indicate: weapon model, year (if applicable), whether firing with a folded stock is required, and compatibility with PT-1 / PT-3.
Example listing line:
“Adapter included — choose: AKS (4.5 mm), AK (5.5 mm, folding with fire), Saiga-9 (5.5 mm), Ten?-19, Civil AK (5.5 mm, non-firing when folded), Fixed AKM (D16T, PT-1 only).”
Before ordering, make sure you have:
Zenitco PT-1 Telescopic Folding Stock - Adjustable Skeleton Stock CNC-Machined D16T Aluminum ..
$699.00
Stock Adapter (Butt Lock) by Zenitco is designed for securely attaching PT-1, PT-1S, PT-3, and PT-3S..
$79.00
PT-3S Telescopic Stock by Zenitco is a CNC-machined tubular-style telescopic stock designed for the ..
$699.00