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M870 ARP9 Adapter Details
M870 ARP9 Adapter
Upgrade your M870 shotgun with a USA‑built, plug‑and‑play adapter now 3D printed in Nylon PA12 with the option of upgrading to PA11 Carbon Fiber for superior strength, longevity, and consistent performance. This adapter enables the use of ARP9 AEG magazines, transforming your classic tri‑shot platform into a compact, high‑capacity powerhouse built for fast, efficient reloading.
Key Features:
– ARP9 Magazine Compatibility: Convert your M870 to use ARP9 AEG magazines, providing a compact, high‑capacity solution perfect for extended skirmishes and fast reloading.
– One‑Piece Adapter Design: Precision‑engineered for smooth feeding, consistent operation, and improved reliability in dynamic gameplay.
– Versatile Fit: Compatible with most tri‑shot shotguns, offering broad platform adaptability and enhanced tactical flexibility.
– Nylon PA12 with the option of upgrading to PA11 Carbon Fiber Construction: 3D printed in Carbon Fiber–reinforced Nylon PA11 for superior rigidity, impact resistance, heat tolerance, and long‑term durability without extra weight.
What’s Included:
– Fully Assembled Adapter: The TAPP M870 ARP9 Adapter comes ready to use right out of the box—no modifications required.
Proudly made in the USA. Backed by a 30‑day warranty and lifetime technical support, with access to replacement parts (fees may apply).
Compatibility: M870 and most tri‑shot shotguns
CARBON FIBER.
CARBON FIBER.
CARBON FIBER.
Strength you can feel. Weight you barely notice. Precision performance. Engineered for those who demand more than plastic.
Unmatched Strength
• 38% Higher Tensile Strength
• 3x Stiffer than Nylon
• Won't deform
Superior Resistance
• High-Temp Ready
• Thermal Stability
• UV & Moisture Resistant
Pro Finish
• Sleek Matte Black
• Metal strength, plastic weight
HPA Optimized
• Lightweight composite build
• Tested for field durability
Rigid Structure
• Perfect Airseal Integrity
• Smooth mag insertion
Custom Cerakote & Precision Coatings
Our in-house finishing delivers Cerakote and precision laser engraving with exceptional durability and style. Every surface is treated, coated, and inspected to ensure flawless performance and lasting quality.
Start Your Project
30 Day Warranty + Lifetime Support
All Tapp Airsoft products include a 30-day warranty. We also offer lifetime support for technical issues and replacement parts (fees apply).
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PRO ADAPTER
Designed for added Performance, Ergonomics and Aesthetics.
20-80% Condensed Dimensions
We've designed each system to create the sleekest profile.CNC Feed Nozzle
Areas under repeated use or load have been upgraded with replaceable CNC parts.0.01mm Precision Tolerances
BB-Stop tech optimized for flow and consistency.Individually Designed
Drums and mags are positioned to give a “meant-to-be-there” feel.







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