Vortex 3×21 Spitfire HD Gen II Prism Scope (AR-BDC4 Reticle)
The Vortex 3×21 Spitfire HD Gen II Prism Scope delivers compact AR-15 speed, HD optical glass, direct mount heights, and an illuminated AR-BDC4 reticle for rapid target transitions.
- 3x fixed magnification prism optic
- 21mm objective lens optical glass
- AR-BDC4 illuminated ballistic drop reticle
- Multi-height mounting spacer base system
- 1 MOA mechanical dial adjustments
In Stock
Description
Cut target engagement time down with Vortex Spitfire HD Gen II Scope units featuring 3x fixed magnification and an AR-BDC4 reticle. Presenting a 21mm objective lens, 1 MOA clicks, and 250 MOA elevation travel, it yields swift carbine handling, though fixed 3x magnification limits close-range room clearing speed inside 5 yards.
Constructed from a single piece of 6061-T6 aircraft-grade aluminum, the prism chassis resists heavy drops while weighing just 9.0 ounces. Premium HD optical glass incorporates fully multi-coated surfaces for true color fidelity through the 21mm objective lens. Waterproof to IPX7 standards and nitrogen purged, this prism scope measures 3.0 inches in overall length with a black finish.
Key Features of Vortex Spitfire HD Gen II
Buy Vortex Spitfire HD Gen II prism scopes to equip modern tactical carbines with an ultra-compact, rugged magnified optic. This lightweight combat optic delivers exceptional structural strength, sharp prism reticle contrast, and calibrated 5.56 ballistic drops.
- 3x fixed magnification balances rapid close-range engagement with mid-range target identification
- 21mm objective lens keeps overall weight down to an ultralight 9.0 ounces
- Compact prism architecture provides massive 250 MOA total internal elevation adjustment
- AR-BDC4 illuminated glass-etched reticle provides calibrated holdover marks for 5.56 NATO rounds
- Heavy-duty Vortex Spitfire internal prism housings retain zero under severe carbine recoil
- Broadband anti-reflective coatings maximize light throughput and suppress reflections
- Flush low-profile turrets provide crisp 1 MOA tactile travel click detents
- Multi-height mounting base system includes lower one-third and low mount configurations
Tactical Recoil Prism Endurance
Built with fixed internal prism elements, internal assemblies endure brutal 1000G shock pulses from 5.56 NATO and .308 Winchester platforms without zero shift. The 1 MOA turret detents track through 250 MOA travel without mechanical backlash. Dry nitrogen purging prevents internal glass fogging across working temperatures from -20°F up to 140°F.
Carbine Receiver Mounting Placement
The integrated base clamps to MIL-STD-1913 Picatinny rails on flattop upper receivers. Tighten mount rail clamps to 20 in-lbs for low mount and 35 in-lbs for high mount spacers. Generous 2.6-inch eye relief protects shooter brow lines while maintaining an expansive field of view.
Practical Operations Maintenance Schedule
The etched glass reticle remains visible even without battery power, providing fail-safe aiming. This fixed 3x prism scope is not engineered for long-range precision target shooting past 500 yards where high variable magnification is essential.
- Check rail mount clamp torque on the receiver rail every 200 rounds
- Clean external optical lenses with a lens brush and fluid every 500 rounds
- Inspect rheostat push-button controls and battery cap seals every 12 months
VIP Lifetime Warranty Manifest
Vortex provides an unconditional VIP lifetime warranty covering optical glass, mechanical assemblies, and electronics without time limits. The product package includes the prism scope, multi-height mount system, CR2032 battery, rubber lens covers, lens cloth, and factory manual.
Vortex 3x21 Spitfire HD Gen II Prism Scope (AR-BDC4 Reticle) Specs
| Brand | Vortex |
| Reticle | 1 MOA Circle-Dot |
| Reticle Color | Red |
| Power Source | 1 x CR2032 |
| Mounting | Picatinny |
| Magnification | 3x |
| Eye Relief | 0 to 66mm |
| Quick Release | No |
| Objective Lens Diameter | 21 mm |
| Field of View | 37.9 Feet @ 100 yd / 12.6m @ 100 m |
| Parallax Setting | 100yd / 91.4m |
| Anti-Reflective Coatings | Fully Multicoated |
| Impact Point Correction | 1 MOA |
| Windage Adjustment | 250 MOA |
| Elevation Adjustment | 250 MOA |
| Environmental Protection | Water-Resistant (Unrated) |
| Fogproof | Yes, Nitrogen Filled |
| Material | Aluminum |
| Dimensions | L: 3.0 x W: 2.0 x H: 1.8 Inches / L: 7.6 x W: 5.1 x H: 4.6cm |
| Weight | 9oz / 255g |
| Package Weight | 1.02 lb |
| Box Dimensions (LxWxH) | 8.6 x 4.6 x 2.8 Inches |
Vortex 3x21 Spitfire HD Gen Included:
- Vortex 3x21 Spitfire HD Gen II Prism Scope (AR-BDC4 Reticle)
- 2 x Rubber Lens Covers
- T10 Torx Multi-Tool
- 1/3 Co-Witness Mount
- Lens Cloth
- CR2032 Battery



























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