RRARMS-KR58 PLUS
RR-ARMS KR58 PLUS PRO CNC receiver for SA58
SKU: RRARMS-KR58 PLUS
Verified Stock
210,42 €
incl. VAT
WAREHOUSE: IN STOCK
WH-PRAHA / SEC-1
Verified Inventory
In stock
Next dispatch
on Monday (5 Oct)
In stock in Prague. Ships next business day. No dropshipping.
- Type
- Dust cover with Picatinny rail for Sa vz. 58 – PRO CNC version with mini rail
- Fits
- Sa vz. 58 and clones, receiver width 35.7–36.5 mm; mini rail for red dot sights up to 50 g
- Weight
- 235 g
The RR-ARMS RRARMS-KR58 PLUS is a PRO CNC receiver designed for the SA58 with a Picatinny rail that adheres to MIL-STD-1913 and STANAG 4694 NATO standards. This receiver cover offers FAIL SAFE properties, ensuring that even if the cover is damaged, i
Key features
- Set: PRO CNC receiver cover + 38 mm side mini rail for a red dot
- Receiver cover with 117 mm Picatinny rail (MIL-STD-1913, STANAG 4694)
- FAIL SAFE – the original sheet cover and springs stay on the rifle
- 6 mm walls – protects the rifle in drops and impacts
- Tool-free fit and removal in seconds
- Iron sights remain usable
Product description
The RR-ARMS RRARMS-KR58 PLUS is a PRO CNC receiver designed for the SA58 with a Picatinny rail that adheres to MIL-STD-1913 and STANAG 4694 NATO standards. This receiver cover offers FAIL SAFE properties, ensuring that even if the cover is damaged, it will not affect the function of your weapon. The robust construction, featuring a 6 mm wall thickness, provides enhanced durability and impact resistance, making it ideal for absorbing the force of falls and rough conditions.
Unique Features
- Picatinny rail (MIL-STD-1913) for mounting red dot sights, riflescopes, and other accessories.
- Durable construction with 6 mm wall thickness to absorb larger impacts and prevent deformation of the original metal cover.
- FAIL SAFE properties ensure continued weapon functionality, even if the cover is damaged.
- Compatible with 38 mm side mini-rail for mounting additional accessories.
- The cover fits weapons with widths between 35.7 mm and 36.5 mm in the breech; custom solutions for wider modifications available.
- Smooth design reduces snagging risk on clothing or objects.
- Easy installation and disassembly without the need for specialized tools or a gunsmith.
- Locking nuts and screws prevent accidental loosening during use.
Included in the Box
- RR-ARMS RRARMS-KR58 PLUS PRO CNC receiver cover with Picatinny rail.
- 38 mm side mini-rail for additional accessories.
- Extended disassembly pin.
Technical specifications
Type
Dust cover with Picatinny rail for Sa vz. 58 – PRO CNC version with mini rail
Fits
Sa vz. 58 and clones, receiver width 35.7–36.5 mm; mini rail for red dot sights up to 50 g
Weight
235 g
Length
140 mm
Material
Aluminum alloy, hard anodized
Package contents
Dust cover with Picatinny rail, extended takedown pin, side mini rail 38 mm
Manufacturer
RR-ARMS
Category
Dust Covers
SKU
RRARMS-KR58 PLUS
Also searched as
kryt · závěru · 858 · duralový · integrovaným · railem · SA · vz.58 · záveru · pre · so · zárezmi
Availability
In stock
Compatibility & mounting
For the Sa vz. 58 and clones with a receiver width of 35.7 to 36.5 mm at the bolt area (also refinished rifles). Wider rifles can be handled individually – mention it when ordering. Ready for the 38 mm side mini rail.
Compatible weapons
Model comparison
 RR-ARMS KR58 PLUS PRO CNC receiver for SA58This product |  RR-ARMS 58MINI side mini-picatinny rail - SA58 breech cover PRO |  RR-ARMS KR58 PRO CNC slide cover for SA58 | |
|---|---|---|---|
| Price | 210,42 € | 16,67 € | 193,75 € |
| Availability | In stock | More than 25 pcs | More than 25 pcs |
| Type | Dust cover with Picatinny rail for Sa vz. 58 – PRO CNC version with mini rail | Side Picatinny mini rail for RR-ARMS PRO dust cover | Dust cover with Picatinny rail for Sa vz. 58 – PRO CNC version |
| Fits | Sa vz. 58 and clones, receiver width 35.7–36.5 mm; mini rail for red dot sights up to 50 g | SA58 RRARMS PRO CNC dust cover; red dot sights up to 50 g (Docter, Burris FastFire and similar) | Sa vz. 58 and clones, receiver width 35.7–36.5 mm |
| Weight | 235 g | 17 g | 235 g |
| Length | 140 mm | 38 mm | 140 mm |
| Material | Aluminum alloy, hard anodized | AlSi7Mg0.6 aluminum alloy, hard anodized | Aluminum alloy, hard anodized |
| Package contents | Dust cover with Picatinny rail, extended takedown pin, side mini rail 38 mm | — | Dust cover with Picatinny rail, extended takedown pin |
| SKU | RRARMS-KR58 PLUS | RRARMS 58MINI | RRARMS-KR58 |
FAQ
How does it differ from the plain version?
The box also includes the 38 mm side mini rail for a red dot up to 50 g – scope and red dot on the rifle at once. With a 45° cant the red dot is on the bore axis.
What does FAIL SAFE mean?
The original sheet cover with the recoil and hammer spring assembly stays on the rifle. If the cover is damaged you simply remove it and keep shooting – it never affects the rifle's function.
Do I need tools or a gunsmith?
No. Fitting and removal are tool-free with no modification to the rifle, and take a few seconds.
Does it fit a refinished rifle?
Yes, it works with receiver widths of 35.7–36.5 mm at the bolt area, so blued or repainted rifles too. Wider rifles are handled individually.
Why buy from Tactical-Shop
- Free shipping within CZ over 120 €.
- 14 days to return, no questions asked.
- Orders placed before 14:00 ship the same business day.
- Expert advice by phone or e-mail — fast replies.
Logistical Assurance
Every order is hand-inspected in our Prague warehouse before dispatch. Condition and packaging are verified. Orders placed before 14:00 ship the same day.
RR-ARMS KR58 PLUS PRO CNC receiver for SA58
210,42 €