AR-15 SD Mod 5 9mm Upper Receivers M-LOK Complete - SD Mod 5 9mm Upper Receiver 6in M-LOK Complete Black
2 options
- 6", this page
- 8.5"out of stock
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Stern Defense
Overview
The Stern Defense SD Mod 5 9mm Upper Receiver is a complete assembly designed for the AR-9 platform, offering a dedicated solution for 9mm builds. This upper receiver features a compact 6-inch configuration, which enhances maneuverability while maintaining accuracy, making it suitable for various shooting applications. Builders often utilize this upper in pistol caliber carbines or short-barreled rifles, where versatility and performance in close-quarters environments are key.
Specifications
AR-15 SD Mod 5 9mm Upper Receivers M-LOK Complete - SD Mod 5 9mm Upper Receiver 6in M-LOK Complete Black
2 options
- 6", this page
- 8.5"out of stock
Build history on GunPartPicker
Builders have been adding the Stern Defense AR-15 SD Mod 5 9mm Upper Receivers M-LOK Complete - SD Mod 5 9mm Upper Receiver 6in M-LOK Complete Black to their builds on GunPartPicker since April 2026. All time, it ranks #936 of the 1,673 upper receivers builders have added.
It was hard to find in September 2026, in stock on only 4 of the 16 days we checked, and today 2 of the 3 retailers we track have it in stock. Prices barely moved in September 2026, holding around $460.45, so there haven't been real sales lately. Buying today, the lowest price is $460.45 at Optics Planet, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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