-9 %
ERATAC Harris Bipod Adapter – T-Slot / Picatinny / KeyMod
Price at the dealer: 204.90 €. Converted at the ECB rate as of October 16, 2026.
No permit required (18+)
72479 Straßberg, Germany
12
ID: 9894055
Purchase from outside the EU: The firearm goes through an importer in your country, the dealer handles the export.
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Details
- Original language
- German
- Category
- Condition
- New
- Location
- 🇩🇪 72479 Straßberg, Germany
- Availability
- In stock
Freshness
This listing is based on a mirrored offer, where the listing data was synced to us from a shop, dealer, or external marketplace. Please note that temporary price discrepancies may occur due to possible delays in data transmission.
- Source
- Black Raptor
- Last updated
- 19 minutes ago
Description
Note:
The item is located abroad. Please note that delivery conditions, shipping times, and/or the purchase process may differ.
ERATAC Bipod Accessories · Variant Item
Harris Bipod Adapter – three different interfaces, no complete set Under this listing are three separately selectable adapters. The decisive factor is the interface on the existing setup: T-Nut, Picatinny or KeyMod. The earlier title “Adapter Set” was misleading because not all three parts are delivered together.
Fits well – and when rather not
Fits well When a Harris bipod or the existing Harris mount is to be specifically adapted to one of the offered interfaces and the exact SKU is checked before purchase.
Rather does not fit When a universal adapter for any bipods is expected, the existing rail is not clearly identified, or it is assumed that all three variants are included in the delivery.
Variant selection without wrong purchase
T4391-0013 · T-Nut Adapter This manufacturer code refers to the T-Nut adapter for the Harris lever mount. Before ordering, the existing counterpart must fit the T-Nut system.
T4390-0013 · Picatinny Adapter The Picatinny adapter is intended for setups where a suitable Picatinny interface forms the base. It is not to be equated with the KeyMod variant.
T4390-0007 · KeyMod Adapter This variant is explicitly intended for KeyMod. Those using M-LOK or another interface should not order based on similar appearance alone.
One product, three individual variants The variant selector determines which single adapter is delivered. Price and scope of delivery each refer to the selected manufacturer code.
Limits, disadvantages and avoiding wrong purchases
No three-piece set: The variants are alternatives. It is not automatically T-N
ut plus Picatinny plus KeyMod delivered.
First determine the interface: Similar adapters can have completely different mechanical counterparts. The specific existing rail or mount is decisive for the purchase.
No model transfer: Information from other ERATAC Harris adapters or similarly named items must not be transferred to T4391-0013, T4390-0013, or T4390-0007.
Reliable mounting counts: After mounting, the connection must fit properly, be stress-free, and secure; if the combination is unclear, the manufacturer assignment should be checked before use.
Technical classification
T4391-0013: T-Nut Adapter for Harris Lever – for the corresponding T-Nut counterpart.
T4390-0013: Picatinny Adapter for Harris Bipod Lever – for suitable Picatinny attachment.
T4390-0007: KeyMod Adapter Harris-Bipod – for KeyMod interfaces.
Selection principle: Do not choose by price or appearance, but by the existing mechanical interface and exact manufacturer identification.
Scope of delivery
An ERATAC adapter in the selected variant is delivered. The Harris bipod, other adapter variants, rail, and other accessories are not automatically included in this item.
FAQ
Do I get all three adapters? No. T-Nut, Picatinny, and KeyMod are selectable single variants. The version selected in the variant selector will be delivered.
Which SKU belongs to Picatinny? T4390-0013 is the Picatinny Adapter for Harris Bipod Lever.
Which SKU belongs to KeyMod? T4390-0007 is the KeyMod version for the Harris bipod attachment.
Is T4391-0013 automatically M-LOK? The confirmed assignment is T-Nut Adapter for Harris Lever. Any further interface assignment should only be used if the specific counterpart is clearly confirmed.
Black Raptor classification
The interface is more important here than the product name. First check the existing mount and then compare T4391-0013, T4390-0013, or T4390-0007. This way, a seemingly simple adapter won’t become an avoidable bad purchase. (Show description in original language)
ERATAC Harris-Zweibein-Adapter, T-Nut, Picatinny oder KeyMod Hochwertiges Zubehör bzw. Optikprodukt für Jagd, Outdoor und Sportschießen. Die jeweilige Ausführung ist auf kompatible Picatinny-, KeyMod-, M-LOK- oder Optiksysteme abgestimmt und unterstützt eine zuverlässige Nutzung.
Variante, Durchmesser und Schnittstelle vor Bestellung prüfen
Robuste und praxisgerechte Ausführung
SKU: T4391-0013 / T4390-0013 / T4390-0007
Technische Daten, Montage, Lieferumfang und Kompatibilität bitte vor Nutzung anhand der Herstellerangaben abgleichen.
Variante, Durchmesser und Schnittstelle vor Bestellung prüfen
Robuste und praxisgerechte Ausführung
SKU: T4391-0013 / T4390-0013 / T4390-0007
Technische Daten, Montage, Lieferumfang und Kompatibilität bitte vor Nutzung anhand der Herstellerangaben abgleichen.
