Short-barrel rifles balance compact handling with full-power cartridge performance, making them a preferred choice for operators who need maneuverability without sacrificing terminal effectiveness. A well-engineered SBR delivers reliability, low weight, and consistent accuracy in dynamic environments.

DANIEL DEFENSE DDM4 V4

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Precision engineering and receiver platform

The DDM4 V4 uses Mil‑Spec lower and upper receivers CNC machined from 7075‑T6 aluminum with Type III hard coat anodizing, giving a rigid, corrosion‑resistant foundation. Notable touches include an enhanced flared magazine well for faster reloads and a rear receiver QD swivel attachment point for sling versatility. Indexing marks and M4 feed ramps on the upper support reliable chambering with varied magazines.

Barrel, gas system, and performance

This model is most commonly chambered in 5.56 NATO, a caliber that balances low recoil, wide ammunition availability, and effective terminal performance for most defensive and duty applications. The barrel is chrome moly vanadium, cold hammer forged with a 1:7 twist and a 16″ government profile that’s chrome lined and MP tested—features that extend service life and maintain accuracy under repeated use. The pinned low‑profile gas block is CNC machined from 4140 hardened steel and uses a carbine-length direct impingement gas system tuned for reliability.

Controls, ergonomics, and durability

The DDM4 Rail 10.0 handguard is CNC machined from 6061‑T6 aluminum and Type III anodized, offering a slim, heat‑resistant mounting platform. The GRIP‑N‑RIP charging handle and M16‑profile chrome‑lined bolt carrier group are factory‑built to Mil‑Spec standards, including a properly staked gas key. The H buffer, Daniel Defense buttstock, pistol grip, and vertical grip use glass‑filled polymer with soft‑touch overmolding for control and comfort. Rail panels are Santoprene material rated to 300°F for thermal protection during sustained strings of fire.

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Why operators choose this platform

Built by a respected manufacturer, the DDM4 V4 offers a durable, familiar AR‑pattern platform tailored for duty and defensive use. The Daniel Defense flash suppressor (17‑4 PH stainless, salt bath nitride finished) and hard‑coated aluminum components justify the premium positioning—reflected in the listed price of $2,500.99. As a Semi Auto category SBR commonly in 5.56 NATO, it’s an option for those who want a compact, serviceable rifle with proven materials and machining.

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