Out Of Stock Recknagel Weaver Bases - Heym SR 21 (57080-30220)
The Recknagel Weaver Bases – Heym SR 21 (57080‑30220) are a set of precision‑machined mounting bases designed specifically for Heym SR 21 rifles. Instead of a full continuous rail, this design uses separate front and rear Weaver-style bases that attach directly to the receiver, creating stable mounting points for Weaver (and many Picatinny-compatible) rings. By spacing the bases apart instead of running a full rail length, these mounts help reduce weight, allow larger scope tube mid-sections to fit more easily, and let your scope sit lower and closer to the barrel, which can improve cheek weld and sight-in ergonomics. The bases are made from black anodised aluminium, sit approximately 5 mm above the receiver, and provide a stable, repeatable platform for optics setups.
-Nathan (Technical Advisor)
The front and back Picatinny/weaver bases are an alternative to a full Picatinny/weaver rail, reducing weight and creating a space between where the rings and bases attach to to the rifle. This allows for large scope mid-sections and allows your scope to sit lower and to get a closer fit to the barrel.
The ideal scope position is as close to the barrel as possible.
Recknagel Krico 600 / 700 / 900 / 902
Hole Spacing: 21.8mm (Radius Base)
----
Recknagel Krico 600 / 700 / 900 / 902
Hole Spacing: 12.7mm (Radius Base)
Material: Black Anodised Aluminium
Height of Base - 5mm
Contents Supplied
Black Anodised Base, Screws and Wrench
Please be aware that if you have picatinny (5.23mm) rings, they are too big to fit to weaver (4,57mm) groove spacing. The front and back weaver bases are an alternative to a full picatinny/weaver rail, reducing weight and creating a space between where the rings and bases attach to to the rifle.
This allows for large scope mid-sections and allows your scope to sit lower and to get a closer fit to the barrel. The ideal scope position is as close to the barrel as possible.
| Material | Aluminium |
|---|---|
| Color | Black |
| BH height | 5 mm |
| BH height. | 5mm |
| H height. | 0 |
| Inclination | 0 MOA |
| Base type | Weaver |
| Scope / Sight type | Weaver Rail |
1. What rifle are these Weaver bases for?
They’re made specifically for Heym SR 21 rifle receivers. Always confirm your rifle model before installation.
2. What kind of mounting standard do these bases use?
They use the Weaver rail standard, compatible with many Weaver and Picatinny rings (note that Picatinny rings may be slightly wider than Weaver grooves).
3. Why use two separate bases instead of one rail?
Two bases reduce weight, allow space for larger scope mid-sections, and let the scope sit lower on the rifle for better ergonomics.
4. What material are the bases made from?
They’re machined from black anodised aluminium — strong, corrosion-resistant, and lightweight.
5. How high are the bases above the receiver?
The bases sit approximately 5 mm above the receiver surface.
6. Do these include mounting hardware?
Yes — the set typically includes the bases, screws, and a wrench for installation.
7. Will these help maintain scope zero?
When correctly installed with proper torque, they provide a solid, repeatable mounting platform that supports maintaining zero.
8. Can I mount any scope rings on these?
You can mount Weaver-pattern rings directly. Picatinny rings may fit but might be slightly wide due to groove spacing differences.
9. Is this base suitable for heavy recoil calibres?
Yes — the aluminium Weaver bases provide a secure attachment, but always ensure rings and screws are installed and torqued properly for your calibre.
10. Where are these bases made?
Recknagel bases are known for German engineering and high-quality machining standards.
Delivery costs & estimated arrival
Find your country below for the delivery charge and how long your order should take to reach you. All orders ship with FedEx. Estimates are in working days and exclude weekends and public holidays.
| Country | Up to 2kg | 2kg – 30kg | Estimated delivery | ||
|---|---|---|---|---|---|
| Order under €350 | Order €350 & over | Order under €350 | Order €350 & over | ||
| Austria | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Belgium | €8.95 | €14.95 | €14.95 | €14.95 | 4-6 working days |
| Bulgaria | €11.95 | €31.95 | €31.95 | €31.95 | 7-9 working days |
| Croatia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Cyprus | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Czechia | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Denmark | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Estonia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Finland | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| France | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Germany | €8.95 | €14.95 | €14.95 | €14.95 | 5-7 working days |
| Greece | €11.95 | €31.95 | €31.95 | €31.95 | 8-10 working days |
| Hungary | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Ireland | €6.95 | €6.95 | €8.95 | €8.95 | 2-4 working days |
| Italy | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Latvia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Lithuania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Luxembourg | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Malta | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Monaco | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Poland | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Romania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Slovakia | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Slovenia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Spain | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Sweden | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
Returns & withdrawal
Which option you use depends on why you are sending the item back.
Changed your mind?
You have 14 days from receiving your order to withdraw from your purchase. Use our Withdrawal from Contract form to tell us. It is the quickest way, and we will then email you a free returns label.
If you would rather post the item back yourself to our returns address in Ireland, you pay the postage. Full details are on our Returns page.
Withdrawal from ContractFaulty, damaged or wrong item?
If your item arrived faulty, damaged or not what you ordered, please follow the steps on our Returns page. We cover the cost of returning these items.
Full details of all our return options are on that page.
Returns pageDelivery prices are shown in euros and confirmed at checkout.

calcPageSize()); bodyToggle()"
/>