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You do not want to miss this podcast with Matty Nelson, former Green Beret, with Seekins Precision, to talk about their latest and greatest design, the SIC rifle.
Precision shooters, competitors, and professionals have long chased a rifle that balances brute strength with fast modularity and repeatable zero. The Seekins Precision SIC (Seekins Interchangeable Caliber) rifle aims straight at that problem with an architecture that rethinks how a rifle is built, not just how parts bolt together.

Instead of a traditional action dropped into a chassis, the SIC uses a massive receiver that integrates what most platforms spread across multiple components. The result is a tool‑free, on‑the‑fly caliber change system that preserves alignment and reduces the usual weak points where screws back out and tolerances drift. From short action favorites like 6.5 Creedmoor to long action hammer rounds like 300 Norma and 338 Lapua, the platform transforms without turning your bench into a parts yard.
What makes this design compelling is the way it manages interfaces. Dedicated, caliber‑specific magazine wells drop into the receiver so you avoid unreliable spacer hacks, and a larger‑diameter bolt body carries a tool‑less, swappable bolt head. That change mirrors the proven Seekins approach to barrel swaps, bringing their “HIT” methodology inside the SIC’s core. Two takedown pins—think AR upper and lower—separate the receiver, magwell, and trigger group for maintenance and role changes. Add a folding stock, full‑length Arca, and M‑LOK throughout and you get a rifle that moves from ELR hillside hides to competition barricades with minimal compromise. Demand from special operations drove the brief, but the civilian interest is obvious: one rifle, multiple missions, repeatable performance.
Rail integration is smarter than it looks. The 20 MOA Picatinny rail keys into a beveled handguard channel and installs from the front, preventing movement from top‑down torque and eliminating the micro shifts that plague thermal and night vision setups. Mount a dedicated rail section to your thermal, slide it into the handguard’s keyed track, and your return‑to‑zero stays true because the geometry, not just screws, enforces position. Reports from high round counts show no meaningful zero shift across classes, even after drops, heat cycles, and abuse that would out a lesser build.
Ergonomics follow a “supercar” philosophy: close your eyes, shoulder the rifle, and controls should fall exactly where your hands expect. The ambidextrous safety doubles as a true thumb shelf, fixing a common gripe with precision stocks and improving grip tension without torquing the rifle. Length of pull and cheek height adjust quickly, and a flywheel lets you shift the buttpad up, down, or cant it to clear armor, antennas, or pack straps. For operators who tune kit to the mission—or competitors contorting over obstacles—those micro adjustments translate to cleaner natural point of aim, less wobble, and fewer forced shots.
Performance has been off the charts amazing, as you come to expect from Seekins Precisions. The SIC feels less like a new model and more like a blueprint for how modular precision rifles should and will be built.
Make sure to visit the following links when you can:

SeekinsPrecision.com
IG: "seekinsprecision_official"
IG: "matty__nelson
George Blitch (host)
IG: "thesonofablitch"
YouTube.com/@SonofaBlitch