Golden Eagle Seal set for M870 (Full Stock) | FREE Delivery over €50 (ROI)
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The GOLDEN EAGLE Seal Set (MC-89A) is a direct replacement kit of seals designed specifically for M870 series gas pump‑action rifles equipped with an integrated gas tank. Restores airtight performance, reduces leaks, and brings back consistent cycling and FPS stability for rifles that have lost seal integrity.
Made for straightforward installation during routine maintenance or repairs, this kit is the correct choice only for M870 models that use a built‑in gas tank (not for CO₂ or external systems). Keep your shotgun running reliably in the field — a small kit that prevents misfires and preserves valve life.