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 trains'.

RS O On3 On30 KEIL LINE MODELS 48 125 INDUSTRIAL STIFF LEG DERRICK CRAFTSMAN KIT
RS O On3 On30 KEIL LINE MODELS 48 125 INDUSTRIAL STIFF LEG DERRICK CRAFTSMAN KIT
$103.50 (14 Bids)
Time Remaining: 6h 36m
RS O On3 On30 SEQUOIA SCALE MODELS BRANCHLINE SAND HOUSE AND BUCKET CRANE KIT
RS O On3 On30 SEQUOIA SCALE MODELS BRANCHLINE SAND HOUSE AND BUCKET CRANE KIT
$32.00 (3 Bids)
Time Remaining: 7h 38m
Hon3 Blackstone Models DRGW High Side Gondola Road Number 9206  Weathered
Hon3 Blackstone Models DRGW High Side Gondola Road Number 9206 Weathered
$54.95
Time Remaining: 7h 58m
Suncoast Models 004 148 O Scale Logging Camp Craftsman Kit On3On30
Suncoast Models 004 148 O Scale Logging Camp Craftsman Kit On3On30
$56.00 (8 Bids)
Time Remaining: 7h 59m
CHB Models VB 630 148 O Scale Vertical Boiler Kit On3On30 LoggingMachinery
CHB Models VB 630 148 O Scale Vertical Boiler Kit On3On30 LoggingMachinery
$54.95
Time Remaining: 7h 59m
KMP Models O Scale Steam Powered Sawmill w Planer LumberLogging Interior MIB
KMP Models O Scale Steam Powered Sawmill w Planer LumberLogging Interior MIB
$129.95
Time Remaining: 8h 8m
Boulder Valley Models 302 Enclosed Cab Dunkirk Geared Steam Locomotive
Boulder Valley Models 302 Enclosed Cab Dunkirk Geared Steam Locomotive
$39.99
Time Remaining: 9h 8m
RS O On3 On30 COLORADO SCALE MODELS 475 LEAVERITE MINE CRAFTSMAN KIT
RS O On3 On30 COLORADO SCALE MODELS 475 LEAVERITE MINE CRAFTSMAN KIT
$93.47 (5 Bids)
Time Remaining: 9h 25m
RS O On3 On30 ARKANSAS VALLEY MODELS 511 WAYSIDE WAREHOUSE STRUCTURE KIT
RS O On3 On30 ARKANSAS VALLEY MODELS 511 WAYSIDE WAREHOUSE STRUCTURE KIT
$49.95
Time Remaining: 9h 46m
RS O On3 On30 ARKANSAS VALLEY MODELS 515 MILL CREEK MARKET STRUCTURE KIT
RS O On3 On30 ARKANSAS VALLEY MODELS 515 MILL CREEK MARKET STRUCTURE KIT
$80.00 (5 Bids)
Time Remaining: 9h 46m
RS O On3 On30 ARKANSAS VALLEY MODELS 579 JEFFERSON DRY GOODS STRUCTURE KIT
RS O On3 On30 ARKANSAS VALLEY MODELS 579 JEFFERSON DRY GOODS STRUCTURE KIT
$39.95
Time Remaining: 9h 46m
RS O On3 On30 ARKANSAS VALLEY MODELS ROGERS PLUMBING  HEATING STRUCTURE KIT
RS O On3 On30 ARKANSAS VALLEY MODELS ROGERS PLUMBING HEATING STRUCTURE KIT
$50.95 (3 Bids)
Time Remaining: 10h 58m
Morgan Hill Models MHM On30 O Scale Stone Water Tank w Shed Kit
Morgan Hill Models MHM On30 O Scale Stone Water Tank w Shed Kit
$84.95
Time Remaining: 4d 7h 58m
KMP Models O On30 Scale Craftsman Logging Kit Spar Tree Model Trains New
KMP Models O On30 Scale Craftsman Logging Kit Spar Tree Model Trains New
$56.95
Time Remaining: 4d 20h 4m
Buy It Now for only: $56.95
KMP Models O On30 Scale Craftsman Logging Kit Steam Sawmill with Planer New
KMP Models O On30 Scale Craftsman Logging Kit Steam Sawmill with Planer New
$179.00
Time Remaining: 4d 20h 4m
Buy It Now for only: $179.00
RIO GRANDE MODELS DRGW WATER CAR 0470
RIO GRANDE MODELS DRGW WATER CAR 0470
$25.00
Time Remaining: 5d 1h 56m
Buy It Now for only: $40.00
West side  Pacific Traction Pacific Fast Mail Balboa Scale Models Fomras
West side Pacific Traction Pacific Fast Mail Balboa Scale Models Fomras
$500.00
Time Remaining: 5d 4h 31m
Buy It Now for only: $700.00
Western Scale Models M16 Blacksmith Shop SEALED Kit O On3 0n30 1 4 Scale
Western Scale Models M16 Blacksmith Shop SEALED Kit O On3 0n30 1 4 Scale
$26.00 (3 Bids)
Time Remaining: 5d 10h 8m
Western Scale Models M 51 The Rowe Inclined Shaft Headframe  Hoist House Kit
Western Scale Models M 51 The Rowe Inclined Shaft Headframe Hoist House Kit
$58.49 (10 Bids)
Time Remaining: 5d 10h 19m
ON3 ON30 SILVER CITY MODELS DRGW 1872 12 4 WHEEL BOX CAR KIT
ON3 ON30 SILVER CITY MODELS DRGW 1872 12 4 WHEEL BOX CAR KIT
$36.00
Time Remaining: 10d 2h 15m
Buy It Now for only: $36.00
ON3 ON30 SILVER CITY MODELS DRGW 1872 17 4 WHEEL GONDOLA CAR KIT
ON3 ON30 SILVER CITY MODELS DRGW 1872 17 4 WHEEL GONDOLA CAR KIT
$26.00
Time Remaining: 10d 2h 16m
Buy It Now for only: $26.00

Other On30 Scale train items recently purchased through this site:

Western Scale Models M 51 The Rowe Inclined Shaft Headframe Hoist House Kit
On3 On30 WISEMAN MODELS SM 102 DRGW OPEN PLATFORM COMBINE PASSENGER CAR
Western Scale Models M16 Blacksmith Shop SEALED Kit O On3 0n30 1 4 Scale
Blackstone Models HOn3 East Broad Top 3 Bay Hopper Weathered Rd 951 B340703W
Boulder Valley Models 302 Enclosed Cab Dunkirk Geared Steam Locomotive
ON3 ON30 SILVER CITY MODELS DRGW 1872 17 4 WHEEL GONDOLA CAR KIT
Suncoast Models 004 148 O Scale Logging Camp Craftsman Kit On3On30
ON3 ON30 SILVER CITY MODELS DRGW 1872 12 4 WHEEL BOX CAR KIT
KMP Models O On30 Scale Craftsman Logging Kit Steam Sawmill with Planer New
RIO GRANDE MODELS DRGW AIR DUMP GONDOLA
HOn3 EAST BOARD TOP 3 BAY HOPPER CAR KIT BY CBT MODELS
Rio Grande Models 3030 DRGW Idler Flat For Derrick OP Kit
RS O On3 On30 COLORADO SCALE MODELS 475 LEAVERITE MINE CRAFTSMAN KIT
RS O On3 On30 KEIL LINE MODELS 48 125 INDUSTRIAL STIFF LEG DERRICK CRAFTSMAN KIT
RS O On3 On30 ARKANSAS VALLEY MODELS ROGERS PLUMBING HEATING STRUCTURE KIT
Morgan Hill Models MHM On30 O Scale Stone Water Tank w Shed Kit
KMP Models O Scale Steam Powered Sawmill w Planer LumberLogging Interior MIB
CHB Models VB 630 148 O Scale Vertical Boiler Kit On3On30 LoggingMachinery
RIO GRANDE MODELS DRGW WATER CAR 0470
RS O On3 On30 ARKANSAS VALLEY MODELS 515 MILL CREEK MARKET STRUCTURE KIT
RS O On3 On30 ARKANSAS VALLEY MODELS 579 JEFFERSON DRY GOODS STRUCTURE KIT
West side Pacific Traction Pacific Fast Mail Balboa Scale Models Fomras
RS O On3 On30 ARKANSAS VALLEY MODELS 511 WAYSIDE WAREHOUSE STRUCTURE KIT
RS O On3 On30 SEQUOIA SCALE MODELS BRANCHLINE SAND HOUSE AND BUCKET CRANE KIT
Hon3 Blackstone Models DRGW High Side Gondola Road Number 9206 Weathered