RS Regulate AK-314MS Yugo Rear-Biased Lower AK Side Rail Mount AK-314MS UPC 617395300228
Product Description
The RS Regulate AK-314MS is a modular, rear-biased lower optic mount engineered exclusively for Yugo pattern AK side rails found on Zastava M70, M77, M90, N-PAP, and O-PAP rifles. Precision-machined from 6061-T6 billet aluminum, this lightweight side rail mount provides a ultra-low profile optical mounting solution that maintains zero through harsh operational cycles. The rear-biased configuration positions primary red dot optics and micro reflex sights closer to the operator's eye, maximizing eye relief optimization and field-of-view clarity.
Utilizing RS Regulate's proprietary modular system, the AK-314MS serves as the structural lower base that pairs directly with an RS Regulate upper optic mount (such as the AKR, AKMD, or AKML, sold separately). This modular design allows full front-to-back and side-to-side over-bore placement adjustment, enabling the operator to achieve precise center-bore sight alignment regardless of receiver rail manufacturing variances. The hardcoat anodized black finish protects against surface wear, chemical exposure, and operational abrasion.
The AK-314MS features the micro-adjustable titanium tension system, which clamps securely to non-standard Yugo rail geometry without damaging the receiver side plate. The quick-detach lever mechanism allows immediate tool-less installation and removal while preserving exact return-to-zero capability across field maintenance intervals.
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.
- Confirm the host rifle is completely unloaded: remove the magazine, pull the charging handle rearward, and visually inspect the chamber.
- Attach the desired RS Regulate upper optic housing to the AK-314MS lower using the included roll pins or screws, adjusting over-bore position prior to final tightening.
- Open the quick-detach clamping lever fully on the AK-314MS lower unit.
- Slide the mount onto the Yugo receiver side rail from the rear until it seats firmly against the rail stop.
- Close the QD lever to check rail engagement tension. If the clamp is loose or over-tight, open the lever, adjust the titanium locking nut using the small adjustment tooth, and re-test until a smooth, firm lockup is achieved.
- Verify clearance above the receiver dust cover to ensure unhindered field stripping without needing to remove the optic mount when cleaning.
Key Features
- Yugo Pattern Specificity: Engineered specifically for Zastava/Yugo side rail dimensions for absolute lockup and zero retention.
- Rear-Biased Placement: Positions red dots and micro reflex optics rearward for superior eye relief and rapid sight picture acquisition.
- Modular Upper Mount Interface: Pairs seamlessly with RS Regulate upper optic mounts to support diverse optic footprints.
- 6061-T6 Billet Aluminum Construction: Delivers maximum structural integrity with minimal weight penalty.
- Titanium QD Tension System: Fully adjustable quick-detach locking mechanism ensures precise return-to-zero and uniform clamping pressure.
- Over-Bore Adjustability: Allows micro lateral adjustments to align optical axis directly over the center of the barrel bore.
Product Specifications
- Brand: RS Regulate
- Model/Series: AK-314MS Yugo Rear-Biased Lower Mount
- MPN / SKU: AK-314MS
- UPC: 617395300228
- Platform Fitment: Yugo / Zastava Pattern AK (M70, M77, M90, N-PAP, O-PAP)
- Material: 6061-T6 Billet Aluminum with Titanium Hardware
- Finish: Type III Hardcoat Anodized
- Color: Black
- Country of Origin: USA
