Semi Auto 552 short barrel build

Discussion in 'The Machine Shop' started by jeffmm1, Jan 6, 2017.

  1. jeffmm1

    jeffmm1 New Member

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    Hello!

    I recently stumbled upon the Sig 55x series while shopping for HK parts and ended up getting hooked!

    I ended up purchasing a NIB 2013 551 A1 rifle and a used P556 classic pistol without the extended pic rail.

    Now I am contemplating on building a 552 short barrel commando (semi auto). I have noticed a few online retailers such as Gatewood Supply and COGunsales that currently carry some used/new 552 parts.

    My question is, am on on the correct path with purchasing these parts Ala carte? And what will i need to purchase for an upper? Also is there another supplier of parts that I am missing?

    Appreciate your response and have a great weekend.

    Jeff
     
  2. mjc1677

    mjc1677 Member

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    You will love the 556 rifle. I built a 553 clone out of a 556 Swat Patrol. Remember that the upper is considered the rifle. Also not all 552/553 parts will fit the 556 pistol. The 556 pistol has a longer gas system which means you can't use factory 552 handguards. Also you can't use a 552 barrel as it is shorter and uses a different thread pitch on the end that goes into the trunion.
    While Gatewood supply has many parts, you should have very good luck finding things on the sale forum here. I bought and sold all the parts I needed for my build here. You should look at gunfactory.ch in Switzerland also. The website is a little tricky but once you are there for a little bit it is not that confusing.

    Hope this helped
    Mike
     
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  3. jeffmm1

    jeffmm1 New Member

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    It does; thanks Mike! Yeah that Swiss website takes a bit of getting used to and some translation help. I landed on a page where it appears they sell the entire upper for around $4K?? Or was it just for the barrel?
     
  4. mjc1677

    mjc1677 Member

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    Sorry I haven't checked back to this sight in a while. I am not sure what the 4k is for. Sounds like the price for a 553 pistol as that is what they were going for at one time.
     
  5. HermCorps

    HermCorps New Member

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    Congrats on your your start to an AWESOME rifle... Gatewood def has some parts available & they always have real deal stuff. I have had the best luck finding parts on gunbroker when i was building my 551 clone. Although, I too am fairly new to this forum & after reading a couple posts up I will be checking here for any parts in the future. Gunbroker was always quicker, but I have also dealt with gunfactory & although the wait on shipping is long as hell (to be expected) the service & selection of real parts was phenomenal. If u get too frustrated on the web site give em a call. They speak English & will walk u through everything. Semper Fidelis & good luck with your build!
     
  6. jeffmm1

    jeffmm1 New Member

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    I think i will. Thanks for the tip!
     
  7. CPTKILLER

    CPTKILLER Active Member

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    Outstanding, it will work.
     

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