SAG MK4 S20193 Chassis for AKSU Platforms
- $1 469
In short: SAG MK4 S20193 is a complete chassis assembly developed for compatible AKSU platforms, combining an upper rail, lower handguard and MK3 cover in one coordinated system.
Compatibility checkpoint
- Confirmed platform family: AKSU.
- Required configuration: compatible standard AKSU mounting geometry.
- System: SAG MK4.
- Model: S20193.
Selection rule: Confirm the exact AKSU platform and original mounting geometry before ordering. This S20193 assembly is distinct from full-length MK3 and MK4 variants.
Purpose
The MK4 assembly creates a coordinated forward mounting structure and top interface for the compact AKSU platform. Its components are designed to install and align as one system.
System components
| Upper assembly | Upper rail |
|---|---|
| Lower assembly | Lower handguard |
| Rear component | MK3 cover |
| Fasteners | Installation screws |
What's in the box
- SAG MK4 upper rail × 1
- SAG lower handguard × 1
- SAG MK3 cover × 1
- Installation screws × set
Installation
Installation follows the SAG MK3/MK4 manual sequence: fit the lower handguard, install and secure the upper rail, set the chassis adjustment screw, then reinstall the spring assembly and MK3 cover. The specified final tightening value for the identified screws is 30 in-lb (3.5 N·m).
Frequently asked questions
Which platform fits SAG S20193?
S20193 is the MK4 chassis version confirmed for compatible AKSU platforms.
Which main components are included?
The assembly includes the upper rail, lower handguard, MK3 cover and installation screws.
Is S20193 the same as a full-length MK4?
No. S20193 is the dedicated AKSU version and should be selected by exact platform geometry.
What final tightening value is specified?
The SAG manual specifies 30 in-lb (3.5 N·m) for the identified final-tightening screws.
SAG Specs
General
Mounting & Rails
Kit Contents
Care & Chemicals
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