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Not really an issue persay, but the barrel extension to upper fit was tight. It needed a light coat of grease and a litte persuasion to get the barrel fully seated in place, however, I found this to be much preferrable to some of the sloppy loose uppers i've seen. The barrel nut threads on the upper were also snug, especially with the billet Seekins barrel nut.
Everything seemed to be machined to the Max Material Condition.
At the end of the day it made for a very sweet shooting rifle.
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wow,so sounds like their a really reputable company with quality parts. thanks for all the replies everyone.
have you seen any barrel fitment issues with the upper, since it is not mil-spec?
Not really an issue persay, but the barrel extension to upper fit was tight. It needed a light coat of grease and a litte persuasion to get the barrel fully seated in place, however, I found this to be much preferrable to some of the sloppy loose uppers i've seen. The barrel nut threads on the upper were also snug, especially with the billet Seekins barrel nut.
Everything seemed to be machined to the Max Material Condition.
At the end of the day it made for a very sweet shooting rifle.
I would agree. I would rather have it snug than loose. Also, as a quality upper, I would hope since they do all the machining in-house there would be no need to lap the upper...?
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My question is regarding the statement on their website about possible compatability with rails with anti-rotation tabs.
I wonder which ones they are referring to.
I can tell you this, the Seekins BAR did have some fitment issues, as would any of them that have tabs that go on either side of the flat top rail on the upper. The left side of the upper (on the right hand eject version of the G4) does protrude out to make up the slide area for the charging handle, and as such, kept the handguard from sliding fully into place. I marked off the interfering area on the handguard with tape and very carefully removed material from the handguard until it fit the upper and I was able to keep a little bit of the tab as well so it still has the anti rotation feature.
I knew I was going to Cerekote the handguard anyway so it wasn't a big deal. Just some filing and sanding. Everything looks like they were made for each other now.
Ok, got it. Thanks for the heads up.
My plan was to use a 9" MI SSK rail to begin with & while it has anti-rotation tabs, as I am sure you know, those interlock with the barrel nut, not the upper itself. I didn't foresee any issues but I wanted to make sure for future purchases. I am thinking of using the 12" Aero Rail or their 13.25" lite rail
Here to go with my 8.2" barrel once I get my Can stamp. I will be using a 1.6" x 6" Can on this upper so that should give me just about an inch of the can sticking out & with the angled rail it should look pretty sweet.
I was looking at their 10" rail but man that thing looks heavy compared to their lite ones...