Daniel Defense V4 S SBR

Product Description

The Daniel Defense V4 S SBR is a purpose-built short-barrel rifle designed for operators who need maximum maneuverability without compromise. This platform delivers precision performance in tight spaces. Whether you’re building a dedicated home-defense setup or a tactical training rifle, the V4 S gives you proven Daniel Defense quality in a compact package.

Every Daniel Defense firearm is hand-assembled by skilled technicians, rigorously quality-assurance tested, and test-fired before shipping. The V4 S SBR chambers the versatile 5.56x45mm NATO caliber. This ensures reliable ammunition availability and proven ballistic performance across commercial and military-grade loads.

The 14.5-inch cold hammer-forged, chrome-lined barrel maintains Daniel Defense’s legendary accuracy standards. Additionally, the MFR XL 9.5 M-LOK handguard keeps the rifle compact and highly maneuverable. M-LOK attachment points let you mount lights, lasers, and other tactical accessories exactly where you need them.

Materials & Construction

• Lower Receiver: Daniel Defense Lower Receiver, Forged 7075-T6 Aluminum, Type III Hard Coat Anodized, Mil-Spec
• Upper Receiver: Daniel Defense Upper Receiver, Forged 7075-T6 Aluminum, Type III Hard Coat Anodized, Forward Assist and Dust Cover
• Barrel: 14.5″ Cold Hammer Forged, 1:7″ Twist, Chrome Lined, Government Profile, Mil-Spec Heavy Phosphate Coated
• Gas System: Mid-Length Direct Impingement Gas System with Low-Profile Gas Block
• Muzzle Device: Daniel Defense Mil-Spec Flash Suppressor, 1/2×28 Threaded
• Handguard: Daniel Defense MFR XL 9.5 M-LOK, Free-Float, M-LOK Attachment Points, Continuous Top 1913 Picatinny Rail, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized
• Bolt Carrier Group: Daniel Defense Bolt Carrier Group, Mil-Spec MP Tested, HPT, with Properly Staked Gas Key
• Charging Handle: Daniel Defense Mil-Spec Charging Handle
• Trigger: Daniel Defense Mil-Spec Single-Stage Trigger
• Buffer: Carbine H Buffer with Mil-Spec Action Spring
• Receiver Extension: Daniel Defense Mil-Spec Carbine Receiver Extension, 6-Position
• Buttstock: Daniel Defense MFT Battlelink Minimalist Stock, 6-Position Adjustable
• Pistol Grip: Daniel Defense Pistol Grip, Glass-Filled Polymer with Soft-Touch Overmolding

Specifications

This rifle is configured with a barrel under 16 inches and a fixed shoulder stock, which makes it a Short-Barreled Rifle (SBR) under the National Firearms Act (NFA) — a Title II firearm. As of January 1, 2026, the federal making/transfer tax on SBRs was reduced to $0 under the One Big Beautiful Bill Act — but the item remains fully regulated. Before taking possession, the buyer (or their trust/entity) must still have an approved ATF Form 1 (if building/registering) or Form 4 (if transferring an already-registered SBR) on file, along with fingerprints, photos, and a completed NFA background check (no tax payment is due). Current eForm approval times are running roughly 10 days for individuals and about 26 days for trusts (as of spring 2026), though times vary. The rifle must be transferred through Western Sport’s SOT/Class 3 process to a licensed dealer in the buyer’s state, and some states restrict or prohibit SBR ownership outright. Western Sport cannot advise on individual compliance — buyers are responsible for following all applicable federal, state, and local law.

Why Buy from Western Sport?

• Western Sport offers local expertise and hands-on service for all Daniel Defense rifles.
• We provide competitive pricing on factory-direct Daniel Defense products year-round.
• Our after-sale support includes warranty assistance and accessory recommendations.
• Fast shipping on in-stock inventory with transparent communication every step.

Frequently Asked Questions

Q: What ammunition does the Daniel Defense V4 S SBR use?

A: The V4 S SBR chambers 5.56x45mm NATO and .223 Remington ammunition. Both calibers deliver proven accuracy and reliability. NATO-spec ammo is widely available and cost-effective for training and defensive use.

Q: What optics and accessories fit the MFR XL 9.5 M-LOK handguard?

A: The M-LOK mounting standard accepts thousands of modern accessories. Tactical lights, vertical foregrips, and laser systems attach securely to any M-LOK slot. Additionally, a flat-top Picatinny rail accommodates any standard optic or red-dot sight.

Q: How does the V4 S handguard compare to other Daniel Defense rail options?

A: The MFR XL 9.5 is Daniel Defense’s compact M-LOK solution for short-barrel platforms. It provides excellent modularity while keeping overall rifle length minimal. Furthermore, the 9.5-inch design balances accessory real estate with superior maneuverability in vehicle and close-quarters scenarios.

Q: What comes in the box with the V4 S SBR, and what’s the warranty?

A: Each V4 S SBR ships with the rifle, a single 30-round magazine, and documentation. Daniel Defense firearms include a manufacturer’s warranty against defects. Contact Western Sport for specific warranty details and any questions about your new rifle.

Q: What is the M-LOK handguard on this rifle?

A: Daniel Defense’s free-float M-LOK handguard lets you attach lights, lasers, and grips directly to the rail using the M-LOK slot system — no separate rail sections required. Additionally, the handguard floats independently of the barrel, so attachments don’t shift your zero. A continuous top rail provides a stable mounting surface for optics.

Q: Do I need to file ATF paperwork or pay a tax stamp for this rifle?

A: Yes. This rifle’s barrel is under 16 inches with a shoulder stock attached, which makes it a Short-Barreled Rifle (SBR) under the NFA. As of January 1, 2026, the federal making/transfer tax on SBRs dropped to $0, so you’ll need an approved ATF Form 1 or Form 4 and a completed background check before taking possession, but no tax payment is due. The rifle must transfer through a licensed Class 3/SOT dealer.

Additional information