OtoHacks

RPK-74: The Squad Automatic Weapon Built Around the AK-74.

Meet the Soviet RPK-74, a 5.45×39 mm squad automatic weapon derived from the AK-74. Its long barrel, bipod and 45-round magazine distinguish it from the standard r***e.

Sako TRG-42: Why this Finnish precision r***e is built around repeatability.

The Sako TRG-42 is a Finnish long-range precision r***e built around a manually operated bolt-action system, adjustable ergonomics, and a robust precision-oriented design. This visual documentary breaks down its architecture without depicting live fire.

TRG-42 or another classic precision platform: which design feature matters most for repeatable precision?

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Beretta ARX160: The Modular R***e Built to Change.

Meet the Beretta ARX160, an Italian modular service r***e designed around adaptability, ambidextrous controls, a short-stroke gas system, and a rotating bolt. See how its architecture fits modern military requirements.

ARX160 vs. M4: which design difference matters most historically—the modular architecture or the conventional layout?

Why the G36 Was Built So Differently.

The Heckler & Koch G36 combines a lightweight reinforced-polymer architecture with an indirect gas system and rotating bolt. A compact look at the engineering behind Germany's iconic service r***e.

G36 or HK416 — which design philosophy do you find more interesting, and why?
🎵 Music
Cylinder Five — Chris Zabriskie (CC)

The Bullpup R***e That Defined French Infantry.

Meet the FAMAS F1, France's distinctive bullpup service r***e. Its compact layout, delayed-blowback mechanism, and unusual engineering made it instantly recognizable.

FAMAS F1 or Steyr AUG: which design philosophy is more distinctive? Compare the engineering, not battlefield outcomes.

The Compact SIG That Became a Service Classic.

The SIG Sauer P228 is a compact service pistol developed from the P226 family, known for its robust
locked-breech design and compact proportions. A closer look at the engineering behind an influential service sidearm.

Which design priority matters more in a service pistol: compact size or full-size
handling?

PPS-43: The Compact Soviet Wartime Submachine Gun.

The PPS-43 was developed for a more compact, mobile Soviet submachine gun during World War II. It used a stamped-steel construction, folding stock and 35-round magazine. Historical question: How does the PPS-43 compare with the famous PPSh-41 in wartime design priorities? Comment your view below.

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The Compact Pistol Built for Serious Service.

The Heckler & Koch USP Compact combines a compact polymer-frame design with a recoil-reduction system and a service-oriented architecture. A closer look at the engineering and history behind a widely recognized German pistol family.

&K

SIG MCX SPEAR: The R***e Behind America’s Next Generation.

From the MCX family to the U.S. Army’s XM7, the SIG MCX Spear represents a major shift toward modular 6.8mm combat r***es. Explore the design, evolution, testing, and legacy behind the platform.

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The Heavy Bolt-Action That Reached 2,000 Metres

The McMillan TAC-50 is a heavy, manually operated bolt-action r***e built around long-range precision. Its five-round detachable magazine and heavy barrel emphasize controlled, deliberate shooting rather than rapid fire. Canada adopted the TAC-50-derived C15 as its designated long-range sniper weapon in 2000; the current C15A2 is rated for ranges up to 2,000 metres.
Its unusual legacy comes from combining extreme range with a comparatively simple mechanical architecture. The next weapon reveals another engineering decision that changed its battlefield role…

Was the TAC-50’s greatest advantage its power—or the precision of a deliberately slow manual action?
🎵 Music
Cylinder Five — Chris Zabriskie (CC)
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