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Hogan Build Upper questions...


DrDover

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Been searching the interwebs for a while now and have been looking at videos. I can't seem to find a .308/large platform specific forward assist ? Does it take a special FA or do I just install a standard AR15 FA ? Any one know of where I can get the dust cover, spring, circlip, and all in a single kit for this rifle as well ? Finding a rifle length tube, .308 buffer and spring has proven to be a bit of a challenge and I am dead set on the PRS stock so no else will work. Please help a knooby and guide me down the path to SUCESS !!!

Oh yeah what are you guys using for gas tubes on your DPMS SASS barrels I have the block and barrel just no gas tube.....

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parts are scarce, so keep searching! the forward assist is a ar15 part. I checked my parts places I have in my favorites, couldn't find any upper parts kits in stock, but keep plugging away.

For your buffer equipment, give clint at heavy buffers.com a call, he has awesome stuff, his heavy buffers take out some recoil and are some super quality parts, and he usually has the tubes in stock too if you ask!

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well that alteast answers a few of my questions ! Thank you ! The upper build parts kit would be great. But I guess I will have to do up my own..... Atleast I have my barrel in the freezer and upper with a hair dryer blasting to see if I can get those together to atleast make a little progress on my build...

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It shouldn't be difficult to get the barrel in the upper.  Standard parts, right?  They'll go together fine.  Freezing/heating is completely unnecessary.

DPMS SASS Barrel and Hogan monolithic upper. They were exceptionally tight and  I am sure i could have forced them together with both at room temp. But I prefer to do it the easy way if I can. Do you think there is a problem with my rifle ? Is there something I should be looking for ? Any advice/thoughts are welcome and appreciated.

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I've got a MOLON LABE upper on a POF lower. As far as I know the small parts I used should work for the Hogan upper equally well. I ordered all of the small parts, (dust cover, spring,and rod, F assist assembly, the AR 10 bolt catch and all small springs and detents) just went on Armalites site and made a grocery list,  called them up and they had every part I needed, including the Armalite rifle length gas tube (that would not work for you). You might want to take a look.

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DPMS SASS Barrel and Hogan monolithic upper. They were exceptionally tight and  I am sure i could have forced them together with both at room temp. But I prefer to do it the easy way if I can. Do you think there is a problem with my rifle ? Is there something I should be looking for ? Any advice/thoughts are welcome and appreciated.

Hard to tell, honestly.  Most manufacturers stick to a known set of dimensions (not like the TDP for an AR-15, though).  The .308 ARs have a pretty common set of dimensions, despite the three different basic design styles (DPMS, Armalite, Rock River). 

The most common problems come up with the "custom parts."  Biggest issue to date was with Iron Ridge uppers and lowers, even though there are small things one in awhile. 

Even though Wash just had an issue with a 6.8 barrel and a Mega monolithic set recently (which is a 5.56 AR-15 setup), it's usually not a problem, and a problem exists when the barrel won't fit in the upper.  Tight fit is fine - that's routine, and actually desired.  Too tight to fit is a problem, tolerance-stacking aside.

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Hard to tell, honestly.  Most manufacturers stick to a known set of dimensions (not like the TDP for an AR-15, though).  The .308 ARs have a pretty common set of dimensions, despite the three different basic design styles (DPMS, Armalite, Rock River). 

The most common problems come up with the "custom parts."  Biggest issue to date was with Iron Ridge uppers and lowers, even though there are small things one in awhile. 

Even though Wash just had an issue with a 6.8 barrel and a Mega monolithic set recently (which is a 5.56 AR-15 setup), it's usually not a problem, and a problem exists when the barrel won't fit in the upper.  Tight fit is fine - that's routine, and actually desired.  Too tight to fit is a problem, tolerance-stacking aside.

I am sure I could have pushed them together if I wanted. I just didn't want to get the extension in sideways and mar up my reciever. But now you got me thinking hard about pulling them back apart and seeing if I could push them together with force. I want this build to be right.
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Ina basic (very basic) sense, the Hogan was tha brainchild and creation of the POF, right?  Stick to POF specs on that stuff, for reference.  Honestly, man, I'd be calling Hogan about it, if it were mine, just to ask questions and gain knowledge on their platform.  <thumbsup>

You're honestly the first one here building the Hogan.  ;D

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Ina basic (very basic) sense, the Hogan was tha brainchild and creation of the POF, right?  Stick to POF specs on that stuff, for reference.  Honestly, man, I'd be calling Hogan about it, if it were mine, just to ask questions and gain knowledge on their platform.  <thumbsup>

You're honestly the first one here building the Hogan.  ;D

Called up Hogan. They said no problems with the tight fit. Apparently they are the chaisis builders for GAP. They did say if I felt it was to tight I could send it to them and they would investigate. They also told me that their rifles work better with the DPMS style barrel extensions over the AR10 type.
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The upper that I have on my POF lower (MOLON LABE) was a short run done by one of the employee's of Hogan. My upper has the same pivot and take down pin hole ID's as  the POF .308 lower (.250"), but unlike a POF upper, my upper is designed to accept a DPMS barrel nut and use any generic free float handguard, as opposed to the POF, that requires you to use their proprietary handguard that has a top rail that slides over the top of the upper (nice setup, just not what I wanted) Is your Hogan upper designed in the same manner as the POF was, with the handguard rail that extends over the top of the upper? I'd love to see some pics of your build if possible. By the way, do you know what the thread is for the barrel nut on your hogan upper?

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The upper that I have on my POF lower (MOLON LABE) was a short run done by one of the employee's of Hogan. My upper has the same pivot and take down pin hole ID's as  the POF .308 lower (.250"), but unlike a POF upper, my upper is designed to accept a DPMS barrel nut and use any generic free float handguard, as opposed to the POF, that requires you to use their proprietary handguard that has a top rail that slides over the top of the upper (nice setup, just not what I wanted) Is your Hogan upper designed in the same manner as the POF was, with the handguard rail that extends over the top of the upper? I'd love to see some pics of your build if possible. By the way, do you know what the thread is for the barrel nut on your hogan upper?

IMG_0724.jpg

Here is a photo of my build so far. Mine is the monolithic style that extends over the upper. I will find out what thread pitch the heat sink barrel nut is.

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  • 1 month later...

Debating the advantages of having a JP BCG now and waiting on a DPMS BCG to come in.... Any advice here ladies ? Fulton is OOS as well so my sources for a BCG is getting slim... The fulton phosphate is in stock but if I am going to spend $350 on one I might as well pony up the extra benjamin and get the JP......

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I would take what you can have now. These things were like gold a few years back. We are almost there again.

I took heed in your advice and ordered the JP..... with that and the geissele trigger on order I guess I can start adding some BLING BLING aka PRS stock, heavy buffer& spring, bcm charging handle, badcass safety, adjustable gas block, etc.... to it when i get paid next. Hoping to have it on the range before Jan. 1 !
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Well I now have some more parts on order. Got a paladin adjustable gas block, mid length gas tube, bcm charging handle, JP captured spring, daemon tactical take down pins, houge grip, and geissele SSA-E fcg. Week after next its go-nogo guages, prs stock, and a compensator of some sort... Then OFF to the range to see how she shoots  8)

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  • 4 weeks later...
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I must not forget to mention the the JP products I have installed in my rifle are BETTER than I could have ever thought. These parts are absolutely top notch grade A components. I have had exactly zero JP parts before this rifle and will be installing JP parts in my other rifles once things settle down a bit.

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I must not forget to mention the the JP products I have installed in my rifle are BETTER than I could have ever thought. These parts are absolutely top notch grade A components. I have had exactly zero JP parts before this rifle and will be installing JP parts in my other rifles once things settle down a bit.

JP makes top notch stuff. Everything I've ever bought from JP functioned and performed flawlessly.

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