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SI-Defense AMBI 308 Build


medic83

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I got to molest that set back in January. It is a work of art. I have to say SI-D is definitely one of the top tier manufacturers in the AR game... right up their with LaRue, LMT, KAC, and LWRCi.

I thought about building one when I first saw it, but I'm still happy with my current SI-D.

What's your plan for this? Long range? Hunter? Ninja weapon?

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Yeah...I got one for my brother...got real jealous so I got one for myself. What's funny is mine is 0000066 and his is 0000087. Lol. He ordered before me. Kinda cool imo. I have a 223 si build that is great. I also have my 308 that I built that is a great long range gun. 18.5" criterion rifle gas. Pushing out to 1140 yards last time! Awesome gun. I honestly was gonna kinda mirror the build...maybe different hand guard, different colors...cerakote an invisible pattern. Honestly just had to have it because it was so damn nice! I'm not even left handed. Lol. This is a true ambi set. You can even swap takedown pin sides. Charging handle is as if it was meant for me. It's really what I needed....size is perfect. I thought of a 20" barrel but with my load data, I'm above 2600 fps with my sd at 3.6 I think( gotta check). That's with an 18.5. Sid gas a 16" with rifle gas. Who knows. I gotta see what velocity people are getting with that

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  Nice set .

  That looks like a proprietary Charging Handle , interesting .

 

Yep - medic, does that charging handle latch to the inside of the receiver?...  That's cool, and different.  Pics of the charging handle, please...  out of the rifle...   :))

 

One of these days, I'll build on an SID set - so damn nice...

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Yes it latches on the inside. The ambi sets latch inside. U can still use reg outside latching ones tho. They also sell this charging handle with outside latch. They are working on getting the price down on the charging handle. I didn't care....I didn't mind paying a little more....I wanted it.

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  With a hole going through the Upper Receiver like that , I wonder what kind of gas blow by you could get with using a std out side latch  <dontknow>  I don't think it would be a problem with their Charging handle or they wouldn't sell it that way , at least I wouldn't think they would .

  I for one, will be waiting for your review  <thumbsup>  

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  • 2 months later...

Here's some pics of the finished rifle.  The OD one is my original, just put a new 17.25" jp handguard on....seeing if I like it. What do you guys think of it? I had a 15" apex before.. The FDE one is my brothers.  It's almost identical to mine other than gas block (slr sentry9), rail (15.5" Odin works), ambi 308 set.  I also have another ambi 308 set that I'm slowly building for myself.   The lighting is weird but the grips are ergo and they have a rubber overmold and match the magpul stuff quite well in person.  I think his rifle turned out nice.  

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