Posted: 9/2/2014 6:44:43 PM EDT
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To start with:
The Aero Precision 308 BCG w/ forward assist serrations fits well in the upper receiver. The serrations line up with the forward assist hole in the upper receiver, as well. I won't be absolutely sure this BCG is compatible with PSA's PA10 forward assist until that comes out, though. 
*Earlier I had posted that a standard AR-15 forward assist was not compatible. Edit By PSA: The Upper is designed to use a longer forward assist. Use of a different spring to utilize an ar15 Forward assist is not recommended. Upon closer inspection and a little fiddling around, the forward assist does work. An LR-308 forward assist spring is probably needed. If nobody beats me to the punch, I'll post about the forward assist when I've got the replacement spring. Aero Precision's 308 ejection port cover assembly is not completely compatible. The cover itself fits well. The spring works, but sticks up into the ejection port a little. PSA's ejection port assembly spring might do the same, when it's released. The pin is too long and sticks out over the threads for the barrel nut. It will fit if cut down to size. The AP pin measured 4.352" long and .125" diameter. The standard AR-15 pin I measured was 3.875" long. The standard pin is about 1/10th of an inch too short to work. Edit by PSA: The correct pin would be 4.185" long. 
If anyone has a Fortis Switch rail laying around, I'd love to see if the rails of the handguard and upper line up correctly  .
Edit by PSA: The Fortis Switch 308 is described DPMS High Profile compatable. This is the older style DPMS design, and is not the same height as our upper. |
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Yeah, I'm having a little trouble with the images. I've copy/pasted the img link from photobucket. The pics show up in the post preview, but not once the post is submitted. Is that a security thing for new members?
Also, I haven't been able to find the length of the DPMS ejection port cover pin. If anyone reading would post the dimensions if they have a pin to measure, I'd appreciate it. |
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Quoted:
This is why I just ordered the Rainier billet upper/lower, Rainier 15.5 switch rail, Rainier 18" SS select barrel, .....and so on. Sucks, if they would have released everything at once, I probably would have bit, but after seeing this glad I didn't. Not very versed in the .308 caliber for the AR platform, but this seems to be a horrible release......I am just going to buy a DPMS GII...... |
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yes thank you very much for the write up.
i have to agree with shooter this does suck, when i begin a build i want it done on a couple days at most. i hadn't noticed until this write up that upper receiver parts hadn't been released. on the other hand i was at a local shop the other day, and they had a dpms stripped .308 lower it was "on sale" for $289, twenty dollars more than an upper / lower combo from psa. come on psa we sing your praises to our friends, and tell our local dealers how much cheaper we can get it from you don't leave us out to dry. |
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Quoted:
yes thank you very much for the write up. i have to agree with shooter this does suck, when i begin a build i want it done on a couple days at most. i hadn't noticed until this write up that upper receiver parts hadn't been released. on the other hand i was at a local shop the other day, and they had a dpms stripped .308 lower it was "on sale" for $289, twenty dollars more than an upper / lower combo from psa. come on psa we sing your praises to our friends, and tell our local dealers how much cheaper we can get it from you don't leave us out to dry. agreed. I would like to pose this to the PSA reps checking this forum. Can you please go to the powers that be, and get a complete list of the compatible parts needed to build the UPPER and A list of acceptable BCG's? As well as who else's Lower Parts Kits would work without issue? this would INCREASE sales, and help with us building from home considerably. Thanks in advance. |
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Quoted:
agreed. I would like to pose this to the PSA reps checking this forum. Can you please go to the powers that be, and get a complete list of the compatible parts needed to build the UPPER and A list of acceptable BCG's? As well as who else's Lower Parts Kits would work without issue? this would INCREASE sales, and help with us building from home considerably. Thanks in advance. Quoted:
Quoted:
yes thank you very much for the write up. i have to agree with shooter this does suck, when i begin a build i want it done on a couple days at most. i hadn't noticed until this write up that upper receiver parts hadn't been released. on the other hand i was at a local shop the other day, and they had a dpms stripped .308 lower it was "on sale" for $289, twenty dollars more than an upper / lower combo from psa. come on psa we sing your praises to our friends, and tell our local dealers how much cheaper we can get it from you don't leave us out to dry. agreed. I would like to pose this to the PSA reps checking this forum. Can you please go to the powers that be, and get a complete list of the compatible parts needed to build the UPPER and A list of acceptable BCG's? As well as who else's Lower Parts Kits would work without issue? this would INCREASE sales, and help with us building from home considerably. Thanks in advance. Or just release the damn upper build kit, complete uppers and BCG.............. 
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Quoted:
Or just release the damn upper build kit, complete uppers and BCG..............
Quoted:
Quoted:
Quoted:
yes thank you very much for the write up. i have to agree with shooter this does suck, when i begin a build i want it done on a couple days at most. i hadn't noticed until this write up that upper receiver parts hadn't been released. on the other hand i was at a local shop the other day, and they had a dpms stripped .308 lower it was "on sale" for $289, twenty dollars more than an upper / lower combo from psa. come on psa we sing your praises to our friends, and tell our local dealers how much cheaper we can get it from you don't leave us out to dry. agreed. I would like to pose this to the PSA reps checking this forum. Can you please go to the powers that be, and get a complete list of the compatible parts needed to build the UPPER and A list of acceptable BCG's? As well as who else's Lower Parts Kits would work without issue? this would INCREASE sales, and help with us building from home considerably. Thanks in advance. Or just release the damn upper build kit, complete uppers and BCG..............
agreed upper build kits would be awesome. i doubt their existance currently. |
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I found that a DPMS ejection port cover works. It was a pain to open/close until I popped it open/closed several times. The pin is a tad bit longer than it should be but a few seconds with a dremmel is no big deal. Was does annoy me is that the fwd assist isn't out yet and no info from PSA regarding bolt carrier compatability. (beyond from its a DPMS style).
As for the lower I found that the DPMS takedown pin is way too long and the pivot pin has a relief cut in it like an AR15 pin (so that doesn't work either). The bolt catch pin is a roll pin, not the threaded variety. I'm a bit frustrated with the release of this product. It's just feels like they are throwing spaghetti against the wall to see if it is done and sticks. That being said. I can't wait to get this thing built, pretty damn excited. 
Edited because of my dumb iPotato changes words |
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Looks like the ejection port cover assembly and forward assist were just released.
There should be a lot more information put out by PSA in regards to parts compatibility. It would be nice to know which handguard rail height to purchase without guessing. Mega Arms even has a page dedicated to parts compatibility on their website. |
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i doubt their existance currently. You would be wrong. 
http://palmettostatearmory.com/index.php/ar-10/psa-pa10-forward-assist-assembly.html http://palmettostatearmory.com/index.php/ar-10/psa-pa10-ejection-port-cover-assembly.html We appreciate your patience. Completed barreled uppers will be along soon. |
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Thank you for your inquiry.
Clarifying the addition to the original post, the upper is a late dpms-pattern style - it should be compatable with the post 2009 low-style DPMS pattern rails. Quoted:
Looks like the ejection port cover assembly and forward assist were just released. There should be a lot more information put out by PSA in regards to parts compatibility. It would be nice to know which handguard rail height to purchase without guessing. Mega Arms even has a page dedicated to parts compatibility on their website. |
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Quoted:
You would be wrong.
http://palmettostatearmory.com/index.php/ar-10/psa-pa10-forward-assist-assembly.html http://palmettostatearmory.com/index.php/ar-10/psa-pa10-ejection-port-cover-assembly.html We appreciate your patience. Completed barreled uppers will be along soon. Quoted:
Quoted:
i doubt their existance currently. You would be wrong.
http://palmettostatearmory.com/index.php/ar-10/psa-pa10-forward-assist-assembly.html http://palmettostatearmory.com/index.php/ar-10/psa-pa10-ejection-port-cover-assembly.html We appreciate your patience. Completed barreled uppers will be along soon. I never have loved being wrong more. :) thanks so much guys! we appreciate all you do!! |
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Quoted:
You would be wrong.
http://palmettostatearmory.com/index.php/ar-10/psa-pa10-forward-assist-assembly.html http://palmettostatearmory.com/index.php/ar-10/psa-pa10-ejection-port-cover-assembly.html We appreciate your patience. Completed barreled uppers will be along soon. Quoted:
Quoted:
i doubt their existance currently. You would be wrong.
http://palmettostatearmory.com/index.php/ar-10/psa-pa10-forward-assist-assembly.html http://palmettostatearmory.com/index.php/ar-10/psa-pa10-ejection-port-cover-assembly.html We appreciate your patience. Completed barreled uppers will be along soon. Awesome!! |
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I have an upper built from parts that are DPMS pattern compatible. Will that upper work on a PA-10 lower assembly?
EDIT: Is there going to be an A2 type fixed stock lower build kit available? Will a barrel from, say Black Hole, that is DPMS compatible also be compatible with this upper? |