RPT Kronstadt gII KeyMod Hand Stop - Cast Polymer, 18 g

Brand: TD Russia
Product Code: TDR-RPT-KRONSTADT-2
Availability: In Stock
SKU: TDR-RPT-KRONSTADT-2
MPN: TDR-RPT-KRONSTADT-2

  • $69.00


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RPT Kronstadt gII KeyMod Hand Stop

Genuine RPT | 72 mm cast polymer hand stop at about 18 g | Black, Green, Coyote, Yellow
In short: the RPT Kronstadt gII is the second generation of the Kronstadt hand stop, moved from machined metal to cast Biresin VG280 polymer - which reshaped the ergonomics and removed the wear problem that painted metal has. It is the KeyMod entry in the RPT line and by far the lightest: the machined Izborsk is 47 g, the Narva 47 g, and this is 18 g.

Overview

Switching to polymer casting let RPT redraw the whole part. The ergonomics were reworked from scratch rather than adapted from the metal version, and the profile now flows from the handguard into a swept thumb shelf and a short vertical index. Because the colour is in the material rather than on top of it, there is no anodising or paint to wear through at the contact points - which is exactly where a hand stop wears.

The second benefit of polymer is temperature. Metal below freezing is unpleasant to hold and conducts heat straight out of the hand; the cast body does not, so working with the grip in cold weather is noticeably more comfortable. At 72 mm long and 17 to 18 g the Kronstadt adds essentially nothing to the balance of the handguard it is fitted to. Mounting is KeyMod with DIN 7991 M4x12 screws.

What's in the Box
RPT Kronstadt gII hand stopx 1
DIN 7991 M4x12 screwx 2
Compatibility: Mounts to KeyMod handguards with the supplied DIN 7991 M4x12 screws.

Key Advantages

  • About 18 g - the lightest part in the RPT grip line
  • Cast Biresin VG280: the colour is in the material, so there is no coating to wear off
  • Polymer stays comfortable to hold below freezing, unlike a metal body
  • Ergonomics redrawn from scratch for the cast process, not adapted from metal
  • 72 mm hand stop profile with a swept thumb shelf and short vertical index

Technical Specifications

BrandTD Russia (RPT)
TypeHand stop, KeyMod
MaterialBiresin VG280 cast polymer
Length72 mm
MountingKeyMod, DIN 7991 M4x12 screws
Weight17 to 18 g
ColorsBlack, Green, Coyote, Yellow
MPNTDR-RPT-KRONSTADT-2
ConditionNew

Frequently Asked Questions

Why polymer instead of metal?
Three reasons: the colour is cast into the material so it cannot wear off, the part is far lighter, and polymer is much more pleasant to hold in cold weather than metal.
How light is it?
17 to 18 g depending on colour batch, against 47 g for the machined RPT grips.
Will it fit M-LOK?
No - this is the KeyMod version. The Izborsk, Brest and Narva cover M-LOK; the Pillau III covers Picatinny.
Is it a grip or a hand stop?
A hand stop with a short vertical index - enough to pull back against and to stop the hand travelling forward, without the length of a full vertical grip.
What is in the box?
The hand stop and two DIN 7991 M4x12 screws.
Is this a genuine TD Russia part?
Yes - it is an original TD Russia RPT Kronstadt second generation with guaranteed US delivery.
Genuine RPT Kronstadt gII featherweight KeyMod stop.
In Stock | Guaranteed US Delivery | Genuine RPT Part
Related: RPT Izborsk Short M-LOK Grip | RPT Narva Angled M-LOK Grip | RPT Pillau III Picatinny Grip

Features

Fittings Cast polymer - colour runs through, no coating to wear off

General

Type Cast polymer hand stop
Brand TD Russia
Manufacturer Part Number (MPN) TDR-RPT-KRONSTADT-2
Condition New
Intended Use Hand stop for KeyMod handguards
Material Biresin VG280 cast polymer
Color / Finish Black, Green, Coyote, Yellow
Weight 17 to 18 g
Dimensions (L x W x H) mm Length 72 mm

Mounting & Rails

Mounting KeyMod
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RPT Kronstadt, KeyMod hand stop, polymer grip, angled hand stop