Independent field journal · Practice, evidence, judgmentIssue No. 01 / Summer 2026
KGKNOWN GROUNDClarity and capability in a contested world
Newsletter
Interactive research

Compare like with like.

Start with a product family, then choose two records. Differences, sources, and documentation gaps stay visible.

Step 1

Choose what you are comparing

Compare factory optic-ready pistol configurations.

Step 2

Select two duty pistols

Step 3

Review the differences

“Not documented” means Known Ground has not verified that field. It is not a zero, “none,” or compatibility claim.

Side-by-side comparison of VP9 Optics Ready and 92X RDO
AttributeHKVP9 Optics ReadySpecs checked Jul 23, 2026Beretta92X RDOSpecs checked Jul 23, 2026
Typical priceNot documentedNot documented
Weight26.56 oz with empty magazine33.3 oz unloaded
Overall dimensions7.34 × 1.32 × 5.41 in8.5 × 1.5 × 5.4 in
Product formatpistolpistol
Mount / compatibilityHK VP9 optics-ready plate systemBeretta 90 Series RDO plate system
Catalog statuscurrentcurrent
Accessory railFour-slot MIL-STD-1913MIL-STD-1913
ActionStriker-fired, modified Browning linkless systemDouble-action/single-action
BarrelPolygonal, six grooves, 1:9.8 twistNot documented
Barrel length4.09 in4.7 in
Caliber9×19 mm9×19 mm
Capacity10, 15, 17, or 20 rounds18 rounds; 10, 15, or 17-round configurations
ControlsNot documentedAmbidextrous slide-mounted decocker/safety or decocker-only, by model
FramePolymerAluminum Vertec frame
GripNot documentedVertec panels with wraparound grip included
Operating systemNot documentedShort recoil with falling locking block
Optics interfaceHK numbered plate systemBeretta 90 Series RDO plate system
Reset travel0.12 inNot documented
SafetyFiring-pin block, trigger safety, disconnector, loaded-chamber indicator, disassembly safetyAutomatic firing-pin block
Sight radius6.38 inNot documented
SightsNot documentedRemovable front and rear sights
SlideNot documentedSteel RDO slide
Trigger pull4.5–5.4 lbNot documented
Trigger travel0.24 inNot documented
Editorial context

Choose by use case, not scoreboard.

VP9 Optics Ready: Factory optics-ready configuration.

92X RDO: Factory RDO configuration.