RS Regulate AK-306MS Yugo Front-Biased Lower AK Side Rail Mount AK-306MS UPC 617395300143
Product Description
The RS Regulate AK-306MS is a modular, front-biased lower optic mount engineered specifically for Yugo pattern AK side rails found on Zastava M70, M77, M90, N-PAP, and O-PAP rifles. Precision-machined from lightweight 6061-T6 billet aluminum, this side rail mount provides an ultra-low profile optical mounting platform that maintains structural rigidity and zero retention under hard use. The front-biased design positions primary red dot optics and red dot sights forward toward the handguard, optimizing field-of-view clarity and peripheral awareness while keeping the receiver area clear for unhindered dust cover removal and ejection clearance.
Utilizing RS Regulate's proprietary two-part modular system, the AK-306MS acts as the base lower unit that attaches directly to an RS Regulate upper optic housing (such as the AKR, AKMD, or AKML, sold separately). This system gives operators full front-to-back and side-to-side micro-adjustment capabilities over the bore, enabling perfect center-line optical alignment regardless of minor receiver side rail manufacturing variances. A Type III hardcoat anodized black finish protects the assembly from corrosion, surface wear, and field abrasion.
The AK-306MS incorporates a micro-adjustable titanium tension locking system that mounts securely to unique Yugo rail geometry without marring or deforming the receiver dovetail. Its low-profile quick-detach lever mechanism enables rapid, tool-less mounting and removal in field environments while guaranteeing true return-to-zero performance across repeated installation cycles.
Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits Yugo/Zastava pattern side rails exclusively (Zastava M70, M72, M77, M90, N-PAP, O-PAP). Not compatible with standard Soviet/Bulgarian/Romanian AKM side rails or Century Arms dovetails.
- Verify firearm safety by removing the magazine, pulling the charging handle back, and visually inspecting the chamber to ensure it is clear.
- Assemble the designated RS Regulate upper optic housing to the AK-306MS lower base using the supplied hardware, setting initial lateral over-bore placement before final torquing.
- Open the quick-detach clamping lever fully on the AK-306MS base unit.
- Slide the mount onto the Yugo receiver side rail from the rear until it seats firmly against the forward rail stop.
- Close the QD lever to evaluate rail lockup tension. If the clamp is loose or overly tight, open the lever, adjust the titanium tension nut, and re-test until a firm, positive lockup is established.
- Verify adequate clearance above the receiver dust cover to confirm seamless maintenance access without removing the optic base.
Key Features
- Yugo Rail Compatibility: Purpose-built for Zastava/Yugo side rail dimensions to achieve rock-solid lockup and absolute zero retention.
- Front-Biased Ergonomics: Shifts optic placement forward to maximize situational awareness and maintain an unobstructed ejection port view.
- Modular Upper Interface: Integrates seamlessly with all RS Regulate upper optic mounts for target-specific optic footprints.
- 6061-T6 Billet Aluminum: CNC-machined construction delivers high yield strength and extreme structural integrity with minimal weight.
- Titanium QD Tension Hardware: Micro-adjustable quick-detach lever mechanism provides repeatable return-to-zero clamp pressure.
- Over-Bore Centering Capability: Allows precise lateral fine-tuning to perfectly center the optic sight line over the barrel bore axis.
Product Specifications
- Brand: RS Regulate
- Model/Series: AK-306MS Yugo Front-Biased Lower Mount
- MPN / SKU: AK-306MS
- UPC: 617395300143
- Platform Fitment: Yugo / Zastava Pattern AK (M70, M77, M90, N-PAP, O-PAP)
- Material: 6061-T6 Billet Aluminum with Titanium Locking Hardware
- Finish: Type III Hardcoat Anodized
- Color: Black
- Country of Origin: USA
