SKU: S01560
UPC: 860141001560
The Stern Def. Pistol Upper 9mm - 8.5" Bbl. 10" M-LOK Rail is a purpose-built upper receiver assembly engineered for shooters who demand a compact, modular platform for precision pistol-caliber carbines. Designed for law enforcement, military personnel, and civilian shooters seeking versatility, this upper transforms any compatible AR-pattern lower receiver into a reliable, accurate 9mm system.
The 8.5-inch barrel strikes an optimal balance between velocity retention, handling characteristics, and portability—ideal for close-quarters work, home defense, or specialized training applications where full-size rifle platforms prove unwieldy. This upper features a dedicated 9mm bolt carrier group optimized for blowback operation and reliable feeding across major ammunition manufacturers. The 10-inch M-LOK rail system provides extensive real estate for tactical accessories while maintaining a lightweight profile.
This assembly suits operators building 9mm AR-platform carbines, whether for law enforcement training, civilian home defense, or competition shooting. The compact design reduces overall length without sacrificing accuracy, and M-LOK attachment points offer tool-free modularity for rapid reconfiguration. The machined receiver exhibits the precision tolerances critical for duty-grade performance.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
