Rock-Op Defense Solutions ROD-15 (Stay Hard Edition) Forged

• Matched Cerro Forge Upper & Lower Receiver (7075-T6 Type III Hard Coat Anodized per Mil-Spec forgings), key-marked matching set
• End-plate detent buffer tube capture mod, drilled & tapped for a 6-32 grub screw
• Barrel: cold-hammer-forged, chrome-lined, w/ pinned stainless gas block (multiple lengths available) — .223 Wylde & .300 BLK available
• Mid-length gas system, Melonite/nitride-coated gas tube
• BCM Comp MOD 0 muzzle device w/ stainless accu-washer (no crush washer)
• M16 BlackNitride+ 8620 steel BCG, heat-treated, down-vent gas, slab-side, bolt-run relief cuts
• Rock-Op exclusive Stack-Six staked billet gas key
• Dual-ejector .223/5.56/.300 BLK bolt, C158 steel, shot-peened/MPI
• 4140 billet extractor, Sprinco 5-coil spring
• Billet MSP-Rock-Op 15.75" M-LOK rail (2" USA-made aluminum M-LOK section + QD mount included)
• 2-stage NiB 4.5 lb fire control group (S-marked), Sprinco cryo hammer spring
• PWS enhanced fluted anti-tilt buffer tube w/ fluted H2-H3 buffer, tuned Sprinco cryo power spring
• Magpul CTR/SL/DT buttstock options, Magpul K+ over-molded grip, Magpul Gen 3 window magazine
• Midwest Industries aluminum flip-up BUIS set, Rock-Op aluminum enhanced trigger guard
• Ambi mag release lever w/ oversized paddle, Forward Controls 50° ambi safety selector
• Geissele Enhanced Airborne NSN-Crane ambi charging handle (or B.A.D. RACK / Radian Raptor options)
• KNS anti-rotation stainless fire control anti-walk pin set, upgraded 420 SS heavy-duty coil pins throughout
• No MIM/cast parts or components
• Fully transferable lifetime warranty (limitations apply)

Every upper receiver is lapped for the best possible barrel/receiver marriage. Each rifle is hand-assembled, headspaced/bolt-matched to its barrel, and function/reliability tested before leaving the shop. FFL transfer required at checkout, same as every other firearm on the site.