We've searched the internet and found the largest collection of On30 Scale trains for sale is on eBay. Below are the listings for 'model railroad gauge'.

Narrow Gauge LOMBARD Log Hauler Finished Model HOn3 HO Scale Craftsman model
Narrow Gauge LOMBARD Log Hauler Finished Model HOn3 HO Scale Craftsman model
$99.99
Time Remaining: 3d 10h 47m
Buy It Now for only: $99.99
KATO N gauge 787 system Around the Kyushu 7 Car Set 10 1540 model railroad train
KATO N gauge 787 system Around the Kyushu 7 Car Set 10 1540 model railroad train
$187.83
Time Remaining: 4d 23h 46m
Buy It Now for only: $187.83
Katsumi KTM HO Gauge Series 0 Shinkansen Railway Model Vintage Toy For Parts
Katsumi KTM HO Gauge Series 0 Shinkansen Railway Model Vintage Toy For Parts
$699.99
Time Remaining: 13d 8h 53m
Buy It Now for only: $699.99
Katsumi KTM HO gauge Moha 111 Yokosuka color railway model vintage toy For parts
Katsumi KTM HO gauge Moha 111 Yokosuka color railway model vintage toy For parts
$129.99
Time Remaining: 13d 8h 53m
Buy It Now for only: $129.99
Katsumi KTM O Gauge EF1832 Railroad Model Vintage Toy rare No Box For parts
Katsumi KTM O Gauge EF1832 Railroad Model Vintage Toy rare No Box For parts
$1,999.99
Time Remaining: 13d 8h 53m
Buy It Now for only: $1,999.99
KATO N Gauge Series 87 TWILIGHT EXPRESS Ruifu 10 Car 10 1570 Model Train Diesel
KATO N Gauge Series 87 TWILIGHT EXPRESS Ruifu 10 Car 10 1570 Model Train Diesel
$486.40
Time Remaining: 19d 6h 9m
Buy It Now for only: $486.40
KATO N gauge old form passenger 4 Car Set tea 10 034 model railroad passenger ca
KATO N gauge old form passenger 4 Car Set tea 10 034 model railroad passenger ca
$69.67
Time Remaining: 20d 23h 16m
Buy It Now for only: $69.67
KATO N gauge EF200 appeared during coating 3036 2 model railroad electric locomo
KATO N gauge EF200 appeared during coating 3036 2 model railroad electric locomo
$71.79
Time Remaining: 22d 18h 30m
Buy It Now for only: $71.79
KATO N gauge 701 based 1000 series Sendai color 4 Car Set 10 1553 model railroa
KATO N gauge 701 based 1000 series Sendai color 4 Car Set 10 1553 model railroa
$181.64
Time Remaining: 22d 21h 44m
Buy It Now for only: $181.64
KATO N gauge old form passenger 4 Car Set tea 10 034 model railroad passenger c
KATO N gauge old form passenger 4 Car Set tea 10 034 model railroad passenger c
$103.77
Time Remaining: 22d 21h 44m
Buy It Now for only: $103.77
KATO N Gauge Starter Set 500 Shinkansen Nozomi 10 003 Model Railroad Introducto
KATO N Gauge Starter Set 500 Shinkansen Nozomi 10 003 Model Railroad Introducto
$228.21
Time Remaining: 22d 21h 44m
Buy It Now for only: $228.21
Kato N Gauge EH500 3rd Late Model 3037 2 Japan Import
Kato N Gauge EH500 3rd Late Model 3037 2 Japan Import
$130.18
Time Remaining: 22d 21h 44m
Buy It Now for only: $130.18
KATO N gauge starter set E5 system falcon 10 001 model railroad introductory se
KATO N gauge starter set E5 system falcon 10 001 model railroad introductory se
$221.28
Time Remaining: 22d 21h 44m
Buy It Now for only: $221.28
Kato N Gauge E353 System Azusa Maritime Basic Set Four car 10 1522 Model Railro
Kato N Gauge E353 System Azusa Maritime Basic Set Four car 10 1522 Model Railro
$154.91
Time Remaining: 22d 21h 44m
Buy It Now for only: $154.91
Kato N Gauge UP FEF 3  844 Black 12605 2 Model Railroad steam Locomotive
Kato N Gauge UP FEF 3 844 Black 12605 2 Model Railroad steam Locomotive
$252.63
Time Remaining: 22d 21h 44m
Buy It Now for only: $252.63
Kato N Gauge 313 based 8000 Series Chuo Line 3 Car Set 10 1530 Model Railroad T
Kato N Gauge 313 based 8000 Series Chuo Line 3 Car Set 10 1530 Model Railroad T
$141.95
Time Remaining: 22d 21h 44m
Buy It Now for only: $141.95
KATO N gauge 787 system Around the Kyushu 7 Car Set 10 1540 model railroad trai
KATO N gauge 787 system Around the Kyushu 7 Car Set 10 1540 model railroad trai
$221.38
Time Remaining: 22d 21h 44m
Buy It Now for only: $221.38
Kato HO Gauge HO KIHA 82 900 1 613 Model Railroad Diesel car
Kato HO Gauge HO KIHA 82 900 1 613 Model Railroad Diesel car
$104.15
Time Remaining: 22d 21h 44m
Buy It Now for only: $104.15
KATO N Gauge Starter Set KIHA 58 Based Express Type railcars 10 023 Model Railr
KATO N Gauge Starter Set KIHA 58 Based Express Type railcars 10 023 Model Railr
$227.89
Time Remaining: 22d 21h 44m
Buy It Now for only: $227.89
Kato N Gauge E353 System Azusa Maritime hematopoiesis Set 5 Both 10 1523 Model
Kato N Gauge E353 System Azusa Maritime hematopoiesis Set 5 Both 10 1523 Model
$157.11
Time Remaining: 22d 21h 44m
Buy It Now for only: $157.11
KATO N gauge 701 based 1000 series Sendai color 2 Car Set 10 1554 model railroa
KATO N gauge 701 based 1000 series Sendai color 2 Car Set 10 1554 model railroa
$130.82
Time Remaining: 22d 21h 44m
Buy It Now for only: $130.82

Other On30 Scale train items recently purchased through this site:

Narrow Gauge LOMBARD Log Hauler Finished Model HOn3 HO Scale Craftsman model
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KATO N Gauge HO Gauge Model Railroad Catalog 2019 25 000 Model Railroad Suppl
Kato N Gauge EF65 1000 Late Model JR 3061 2 Japan Import
Kato N Gauge EF81 General Color 3066 1 Model Railroad Electric Locomotive
kato N gauge EF80 primary 3064 1 model train electric locomotive
KATO N Gauge Endless line Basic Set Master 1 20 852 Model Railroad Rail Set
KATO N gauge Rhaetian Railway Bernina Express Basic 5 car set 10 1318 model of
KATO N gauge 787 system Around the Kyushu 7 Car Set 10 1540 model railroad train
Katsumi KTM HO Gauge Series 0 Shinkansen Railway Model Vintage Toy For Parts
Katsumi KTM O Gauge EF1832 Railroad Model Vintage Toy rare No Box For parts
Kato N Gauge E235 Series Yamanote Line Basic Set 4 Both 10 1468 Railway Model
KATO N gauge EF200 appeared during coating 3036 2 model railroad electric locomo
Kato HO Gauge HO KIHA 82 1 607 1 Model Railroad Diesel car
Kato N Gauge E353 System Azusa Maritime Basic Set Four car 10 1522 Model Railro
Kato N Gauge Series E259 Narita Express Basic 3 Car Set Kato PlaRail Model
Kato HO Gauge HO AC Adapter for 22 083 Railway Model Supplies
KATO N gauge Chibi electrostatic my city tram 14 503 1 model railroad train
Kato N Gauge ICE4 7 Both Basic Set 10 1512 Model Railroad Train
KATO N gauge starter set E5 system falcon 10 001 model railroad introductory se
7008 7 DD51 500 medium term low temperature models N gauge by CATO
KATO N Gauge D51 Standard Form 2016 9 Model Railroad steam Locomotive
Kato HO Gauge HO KIHA 82 900 1 613 Model Railroad Diesel car
KATO N gauge 701 based 1000 series Sendai color 2 Car Set 10 1554 model railroa