Ruger Mini 14 Serial Number

This is a discussion on Mini 14 serial number within the Ruger Semi-Auto forums, part of the Rifle & Shotgun Forum category; My ranch rifle shown a 187 prefix serial number. Is this considered a post 180? Getting ready to order some accessories, stock, etc....

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Mini 14 serial number

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Developed from 1967-1973 with Bill Ruger, the Mini 14 was first put into production in 1974. Glasshartt New Member. Ruger Mini-14/F30GB semi-automatic rifle is completely original Ruger issue featuring: pistol grip, folding stock, 30rd magazine (s), bayonet lug, threaded barrel, flash hider. For government users, Ruger produced two specialized versions of the basic rifle - the Mini-14GB and AC-556. The above chart shows the approximate first serial number shipped for the indicated year. This number should be used as a point of reference only. It is not necessarily the very first serial number shipped, but it can be used to determine the approximate year your Ruger firearm was shipped.

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February 26th, 2012, 12:48 PM	#1
Location: Vanceboro, NC	Mini 14 serial number My ranch rifle shown a 187 prefix serial number. Is this considered a post 180? Getting ready to order some accessories, stock, etc.

February 26th, 2012, 02:43 PM	#2
Location: California	Well 187 mini's were produced from 1982-1989 while 180 series were produced from 1974-1977 so you have a mini that is post 180 series. I don't believe the 180 series were considered Ranch Rifles.

February 27th, 2012, 05:32 AM	#3
Location: Vanceboro, NC	Thanks mincoda. Didn' want to order something that didn't fit. I have an earl, tang safety, M77 that's hell to find parts for, Was hoping that I was not going to have the same problem with the Mini

February 28th, 2012, 04:27 AM	#4
Location: Southern Indiana	I asked the same question of the Ruger Customer Service folks. They answered that the prefix '180' means just that...'1-8-0' So the 181 and later Prefixes are considered to be 'Post- 180' rifles. (I have a 189 series Mini-30)

February 28th, 2012, 08:21 AM

Location: Illinois

barenesc, here's a link that may define your Ruger.
Click into the Rifle section and then click on the line 'Mini-14 Ranch (manufactured from 1982 to 2004)' and you can see the approx year your Mini-14 was manufactured via the serial number ranges. Note the prefix (187 in your case) and remainder of serial number can be used.
Ruger Instruction Manuals & Product History
I'm a newbie here, but hope this helps you

Last edited by djw479; February 28th, 2012 at 08:24 AM.

February 28th, 2012, 11:12 AM	#6
Location: California	These threads are several years old but have good Mini 14 info and detail major differences between series. I had to research this info in order to find correct mods. Difference between Ruger Mini-14 'series' variations? - Calguns.net See post #12 Tell me about the difference between Mini14 series - Shooting Sports Forum

February 28th, 2012, 01:22 PM	#7
Location: Tejas	The physical difference you will see in the 180, is the length of the receiver. It was maybe 3/4' longer to accomodate the select fire mechanism in the AC556 variant. No ranch rifles were made with a 180 serial number.

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