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B-13K Rail by Zenitco - Reinforced Receiver Mount with Picatinny Interface

Brand: Zenitco
Product Code: Zen-B-13K
Availability: In Stock
SKU: Zen-B-13K
MPN: Zen-B-13K
  • $599.00
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Zenitco B-13K Side-Mount Receiver Rail - Quick-Detach Picatinny Optics Mount for Large-Format Platforms

Genuine Zenitco | CNC-machined D16T aluminum | 185 mm Picatinny rail | Black, Desert & Golden khaki
In short: a genuine Zenitco B-13K - a one-piece milled side mount that clamps onto the standard side dovetail (side-rail) base of large-format platforms and forms a 185 mm Picatinny rail over the receiver for optics. It installs with a single clamping screw and does not block the iron sight line. Machined from D16T aluminum; about 330 g. Available in black, desert and golden khaki.

The B-13K is the large-format member of Zenitco's B-13 side-mount family. It slides onto the factory side-rail (dovetail) base, clamps down with a screw, and puts a full 185 mm Picatinny rail above the receiver so you can run a scope, red dot, night or thermal device - or a combination - while keeping the mechanical sights usable. You can also add a side accessory rail by fitting optional B-2L rails (sold separately).

A genuine Zenitco factory part machined from D16T aluminum; it measures about 185 x 86 x 80 mm, weighs about 330 g, and ships with a hex key and a manual. Rated for a working temperature range of -50 to +50 C.

Compatibility Note: Designed for large-format platforms that use the standard side-rail (dovetail) mounting base on the receiver. It forms a Picatinny top rail; side rails are optional (B-2L, sold separately). Confirm your receiver has the side dovetail base before ordering.

Key Advantages

  • Genuine Zenitco factory part with exact original fit
  • Full 185 mm Picatinny rail over the receiver for optics
  • Optional side accessory rail via B-2L rails (sold separately)
  • Sits low - does not block the iron sight line
  • Simple single-screw clamp on the standard side dovetail base
  • CNC-machined D16T aluminum - strong and light (about 330 g)
  • Available in black, desert and golden khaki

Technical Specifications

BrandZenitco
Part TypeSide-mount receiver optics rail
FitsLarge-format platforms with side dovetail base
MountingStandard side-rail (dovetail) base - single clamping screw
RailPicatinny top rail, 185 mm (over receiver)
Side RailOptional (via B-2L rails, sold separately)
MaterialD16T aluminum alloy (CNC-milled)
Weight~330 g
Dimensions~185 x 86 x 80 mm
IncludedBracket, hex key, manual
Operating Temp-50 to +50 C
FinishBlack / Desert / Golden khaki
MPNZen-B-13K
ConditionNew

Frequently Asked Questions

What is the Zenitco B-13K?
It is a genuine Zenitco side mount that clamps onto the standard side dovetail base of large-format platforms and forms a 185 mm Picatinny rail over the receiver for optics.
What does it fit?
Large-format platforms that have the standard side-rail (dovetail) base on the receiver. Confirm your receiver has the side base before ordering.
Can I add a side rail?
Yes - you can fit optional B-2L rails (sold separately) to form an additional side accessory rail.
How is it different from the B-13?
The B-13K is the larger, large-format version of the B-13 side mount, with a 185 mm rail and a heavier, more rigid body (about 330 g).
What is it made of?
CNC-machined D16T aluminum alloy. It weighs about 330 g and measures about 185 x 86 x 80 mm.
Is this a genuine Zenitco part?
Yes - it is an original Zenitco part with guaranteed US delivery.
Add a quick-detach optics rail - order the genuine Zenitco B-13K side mount.
In Stock | Guaranteed US Delivery | Genuine Zenitco Part
Related: B-13 Rail (AK-pattern) | B-13N Rail (SVD-pattern) | B-2 Rail

General

Brand Zenitco
Manufacturer Part Number (MPN) Zen-B-13K
Condition New
Intended Use Sport shooting / Training
Material D16T aluminum alloy (CNC-milled), coated
Color / Finish Black / Desert / Golden khaki
Weight 330 g (+/- 5 g)
Dimensions (L x W x H) mm 185 x 86 x 80 mm (+/- 5 mm)

Mounting & Rails

Mounting Standard side-rail (dovetail) base; single-screw clamp; optional side rails (B-2L, sold separately)
Rail Type Picatinny top rail, 185 mm (over receiver)
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B-13K, Zenitco, Bazalet, receiver mount, Picatinny rail, Swallowtail interface, heavy-duty rail, modular system, aluminum component