Caliber: 5.56 NATO (1:7 twist), 223 Wylde chamber; 6mm ARC, 7.62x39 (1:9.5), 300 Blackout (1:7), 350 Legend (1:16, 2026). Lower Receiver: FoldAR FLDR15. FoldAR's patented folding upper offers concealability and easy carry and transport. Folded Length: 17-5/8”. Folded Width: 4.25”. Quick-change barrel system, modular M-LOK handguard of three different lengths. Barrels: 9”, 10.5”, 12.5”, and 16”, 4150 alloy steel, QPQ Melonite black nitride finish. Mil-spec components: BCG, grip, trigger, carbine stock, and non-adjustable gas block (.750 diameter). Introduced 2023. Watchman (2026) has 32-7/8” OAL and 17-5/8” folded length. Weight: 6-6.9 lbs. NFA model Shepherd (2026) comes with compact suppressor (7.5”, 9”, 10.5” barrels) or unsuppressed (12.5” barrel) and folded length of 14.75”.