RS Regulate AK-314MS Yugo Rear-Biased Lower Optic Mount for Zastava PAP/M21 Pattern Rifles

RS Regulate AK-314MS Yugo Rear-Biased Lower optic mount for Zastava PAP/M21 rifles. 6061-T6 aluminum construction with titanium-based locking system for a secure, low-profile fit. Positions optics directly over the bore and allows adjustment for proper eye relief. Attaches directly to the rifle's receiver side rail for a stable, repeatable zero. Note: this lower requires a compatible RS Regulate upper mount and will not work with M92/M85 rifles that lack a factory side rail. Product Highlights: Rear-biased lower for Yugo/Serbian Type Rifles with factory side rails; 6061-T6 aluminum; Titanium-based locking; Direct bore alignment; Requires RS Regulate upper mount; Not compatible with M92/M85. Specs: Type Yugo Rear-Biased Lower (AK-300 Modular Side Mount System); Common Usage Yugo/Serbian Type Rifles (OPAP, NPAP or M21 pattern rifles); Dimensions 5.71 x 0.55 x 1.88 inches; Weight 3.37 oz; Material 6061-T6 Aluminum; Locking System Titanium-based, low profile; UPC 617395300228; Manufacturer Part Number AK-314MS; Brand RS Regulate.