SIA Hemlock

The Hemlock is a dedicated 9mm Pistol Caliber Carbine designed from the ground up for the 9x19mm cartridge — not an AR-15 forced to shoot 9mm. 100% American made by Standard Issue Armory, precision machined in-house from aerospace-grade 7075-T6 billet aluminum for unmatched reliability and surgical CQB performance. A Dedicated 9mm Platform: Proprietary skeletonized lower receiver natively accepts Glock® style magazines and features true low shelf geometry. The slick-side billet upper provides a streamlined profile ideal for close-quarters manipulation. Flared magwell for lightning-fast reloads, integrated oversized (winter) trigger guard, and heavy-duty slick-side upper receiver. Unrelenting Performance: Robust direct blowback operation driven by the SIA 9mm Enhanced Bolt Carrier Group, engineered with increased mass to smooth the recoil impulse and ensure consistent cycling across a wide range of 9mm ammunition. Available with rear or side charging configurations. Features a highly reliable Last Round Bolt Hold Open (LRBHO) mechanism built directly into the lower receiver for familiar AR-style manual of arms. Mission Configurable: Ultra-compact 4" through 16" carbine barrel lengths. Finished in world-class Cerakote (Armor Black, OD Green, FDE, or Custom) and outfitted with premium Hogue overmolded grips and stocks/braces. Every Hemlock is hand-assembled, test-fired, and backed by zero-failure tolerance. Includes premium rifle bag and 1 magazine. Technical Specifications: • Caliber: 9x19mm • Operation: Direct Blowback • Magazine: Glock® Compatible (Double Stack) • Barrel Lengths: 4", 8", 10.5", 16" • Lower Receiver: SIA Skeletonized 9mm Billet (True Low Shelf), 7075-T6 • Upper Receiver: SIA Slick Side Billet 7075-T6 • Bolt Carrier Group: SIA 9mm Enhanced BCG • LRBHO: Yes, Integrated into Lower • Charging Handle: Rear Ambi or Side Charging • Finishes: Armor Black, OD Green, FDE, Custom • Furniture: Hogue Overmolded Grip & Stock/Brace • Included: Premium Rifle Bag & 1 Magazine Lower Receiver Details: Machined from 7075-T6 aircraft grade billet aluminum; precision broached magazine well with beveled feed lips; compatible with 45°/60° short throw selectors (e.g. BAD_ASS ST 45 Lever) and most ambi bolt releases; caliber marking "Multi"; threaded take-down pin spring/detent hole (6-32 set screw); upper tension screw behind grip screw; contoured trigger finger rests; Norgon/aftermarket ambi mag release compatible; threaded bolt catch pin; integrated large opening winter trigger guard; manufactured to MILSPEC on CNC equipment. Starting at $1,399 MSRP (per Standard Issue Armory).