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  1. Home
  2. Browse Manufacturers
  3. CompX Chicago
  4. CompX Chicago X101 - X300
  5. Lock Code List

Hint: Need a replacement key? Just search by your lock code—stamped on the face of your lock or key—and instantly find the correct match.

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CompX Chicago X101 - X300 Series Lock Code List

X101
X102
X103
X104
X105
X106
X107
X108
X109
X110
X111
X112
X113
X114
X115
X116
X117
X118
X119
X120
X121
X122
X123
X124
X125
X126
X127
X128
X129
X130
X131
X132
X133
X134
X135
X136
X137
X138
X139
X140
X141
X142
X143
X144
X145
X146
X147
X148
X149
X150
X151
X152
X153
X154
X155
X156
X157
X158
X159
X160
X161
X162
X163
X164
X165
X166
X167
X168
X169
X170
X171
X172
X173
X174
X175
X176
X177
X178
X179
X180
X181
X182
X183
X184
X185
X186
X187
X188
X189
X190
X191
X192
X193
X194
X195
X196
X197
X198
X199
X200
X201
X202
X203
X204
X205
X206
X207
X208
X209
X210
X211
X212
X213
X214
X215
X216
X217
X218
X219
X220
X221
X222
X223
X224
X225
X226
X227
X228
X229
X230
X231
X232
X233
X234
X235
X236
X237
X238
X239
X240
X241
X242
X243
X244
X245
X246
X247
X248
X249
X250
X251
X252
X253
X254
X255
X256
X257
X258
X259
X260
X261
X262
X263
X264
X265
X266
X267
X268
X269
X270
X271
X272
X273
X274
X275
X276
X277
X278
X279
X280
X281
X282
X283
X284
X285
X286
X287
X288
X289
X290
X291
X292
X293
X294
X295
X296
X297
X298
X299
X300
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Showing 20 most recent reviews
Wayne
Aug 05, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Easy like Sunday Morning.”
Joel
Aug 05, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“The process is easy, and they always send me what I order.”
Angela
Aug 04, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Easy to order online. This is my 2nd time to use this company. Love that they are in the US”
Rochelle
Aug 04, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Very disappointed in your freight policy It seems like everything does not qualify for free freight and some things because of the total you insist on only sending fedex so I have to split my order up into multiple orders and pay more freight than is necessary when it can all go in the same USPS flat rate box cheaper that what you are charging Have bought keys and locks from you for many years and most things were freight included over a certain amount ”
Eric
Aug 04, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Super smooth”
Randall
Aug 04, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Received our key. It works fine. Selection and ordering process was easy.”
Klelia
Aug 04, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“It was so easy to order, upload a picture of the lock and select the shipping method”
DAVID
Aug 03, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“The keys match the lock. No issues.”
Jaime
Aug 03, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Good ”
Willis
Aug 03, 2026
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★ ★ ★ ★ ★
“Great experience ”
Gerald
Aug 03, 2026
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★ ★ ★ ★ ★
“Don’t know yet ”
Joseph
Aug 03, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Easy to find the locks I needed.”
Michael
Aug 03, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“1st time ordering. Seemed easy enough. If the keys work just as good on the 1st time ordering that is worth a 5 star”
Hank
Aug 03, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Excellent”
Pamela
Aug 03, 2026
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★ ★ ★ ★ ★
“I appreciate the ease of ordering. Thank you!”
Jeffrey
Aug 03, 2026
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★ ★ ★ ★ ★
“Great”
ireneusz
Aug 03, 2026
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★ ★ ★ ★ ★
“xxxxxxxxxxx”
Paul
Aug 03, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Easy to Navigate for the Key. Thank you”
Stuart
Aug 03, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“Easy to research availability and place order”
Chris
Aug 03, 2026
✔ Verified Purchase
★ ★ ★ ★ ★
“excellent ”
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