Alpha Drop-Tree System Bundle – 8 mm AR500 Spine with REACK X-BASE & 100 mm AR500 Paddle

Heavy-Duty Reactive Drop-Tree System for Handgun, Light Rifle & Shotgun Training

The Alpha Drop-Tree Bundle is SPI’s premium reactive drop-target system, engineered for shooters who demand precision, durability, and smooth flipping performance.

Featuring a precision-cut 8 mm AR500 armour spine, a stable REACK X-BASE, and a single 100 mm AR500 flip paddle included, this complete bundle is purpose-built for handgun, light rifle, and shotgun calibres.

Unlike duelling trees, where paddles flip side-to-side, the Alpha Drop-Tree forces shooters to track downward. Each hit drops the paddle one position while flipping it to the opposite side, progressing through nine paddle stages before ejecting on the final shot.

The included 100 mm AR500 paddle provides a smaller hit zone, making it perfect for precision drills and faster transitions.

Why Choose the Alpha Drop-Tree Bundle

✔ Complete Kit – Includes Alpha Drop-Tree (8 mm AR500 spine), REACK X-BASE, and 1 × 100 mm AR500 paddle
✔ 100 mm Paddle Included – Smaller face for improved precision and faster target cycling
✔ 8 mm AR500 Armour Spine – Built for maximum impact resistance and extended system life
✔ 9-Stage Drop & Flip System – Every hit lowers and flips the paddle for continuous engagement
✔ Forward-Leaning Design – Deflects bullet fragments downward for improved safety
✔ Quick-Deploy REACK X-BASE – Collapsible stand with quick-release locking pins
✔ Cross-Compatible System – Supports 100 mm & 150 mm paddles in AR500, AR450, or mild steel (sold separately)

Included 100 mm AR500 Paddle

• Material: 8 mm AR500 armour steel for unmatched durability

• Diameter: 100 mm round profile — smaller target for increased accuracy training

• Precision-Cut Design: Ensures smooth, consistent flipping action

• Lightweight Advantage: Lower mass enables quicker paddle actuation and faster transitions

• Tool-Free Installation: Drop-in fitting for easy swaps or replacements

⚠ Performance Notes:

• Rimfire calibres (.22LR, .22 Mag, .17 HMR) will not reliably actuate 8 mm paddles due to lower energy — use 6 mm AR450 or 6 mm mild steel paddles (sold separately).

• For light rifles (.223 / 5.56 / .300 BLK), the included 100 mm paddle offers snappier flipping and rapid transitions.

Calibre Ratings & Safe Distances

(Alpha Drop-Tree Spine 8 mm AR500 + 100 mm AR500 Paddle)

Handgun Calibres (.22LR → .45 ACP)

• Angled (16°–20°+): 10 m+

• Vertical: 15 m+

Light Rifles (.223 Rem, 5.56 NATO, .300 BLK)

• Angled: 40 m+

• Vertical: 60 m+

Shotgun (.410, 12 ga – Bird & Buckshot)

• Angled: 25 m+

• Vertical: 30 m+

Velocity & Energy Ratings:

• Max Energy: 1,500 ft-lbs

• Max Velocity: 2,750 fps

• Min Velocity: 750 fps (for reliable flipping)

⚠ Important Notes:

• Not rated for magnum rifle calibres or extreme-velocity ammunition.

• Rounds under 1,100 fps may fail to actuate 8 mm paddles reliably.

• If flipping becomes too aggressive, increase distance or upgrade to 10 mm AR500 paddles (sold separately).

REACK X-BASE Included

A collapsible, quick-deploy stand designed for SPI’s modular reactive systems.

Features:

• Quick-release locking pins for rapid assembly and takedown

• Locks target spine at the optimal forward lean angle

• Stable, balanced platform engineered for smooth paddle operation

• Cross-compatible with SPI reactive systems:

  • DT-Cadet Duelling Tree

  • DT-Alpha Duelling Tree

  • Cadet Drop-Tree

  • Alpha Drop-Tree

What’s Included

• 1 × Alpha Drop-Tree Spine & Track Assembly (8 mm AR500)

• 1 × REACK X-BASE Stand (Collapsible, Quick-Deploy)

• 1 × 100 mm AR500 Flip Paddle (Included)

• 1 × AR500 Armour Face Plate

• All Required Assembly Hardware

📸 Photo Disclaimer: Images may show accessories for reference only.
This listing includes the Alpha Drop-Tree System with REACK X-BASE and 1 × 100 mm AR500 Paddle.
🇦🇺 Proudly Made in Gippsland, Victoria, Australia