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Posted: 6/27/2015 5:18:54 PM EDT
[#1]
Oh that is so tempting..
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Posted: 6/27/2015 7:12:02 PM EDT
[#2]
Note non-ramped bolt.
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Posted: 6/27/2015 7:14:28 PM EDT
[#3]
Yep, add $50+ to get it ramped.
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Posted: 6/27/2015 7:19:01 PM EDT
[#4]
I confess to toying with the idea of getting the $300 upper and sending the bolt to Rudy to ramp & Glock-profile but I've been strong so far
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Posted: 6/27/2015 7:23:17 PM EDT
[#5]
If you're OK with the added cost of having the bolt ramped yourself, then go for it. Rudy ramped the bolt I bought from PSA and it does look good.
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Posted: 6/27/2015 8:18:27 PM EDT
[#6]
Made a fixture to ramp these.....I am doing them for $40 and that includes return shipping by priority mail
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Posted: 6/27/2015 9:33:51 PM EDT
[#7]
If it was the 10.5" barrel I would be a lot more interested.
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Posted: 6/27/2015 11:11:24 PM EDT
[#8]
Quote HistoryQuoted:
If it was the 10.5" barrel I would be a lot more interested. OOS currently, but was in stock not long ago: http://palmettostatearmory.com/index.php/daily-deals-new/psa-10-5-9mm-1-10-melonite-upper-with-bolt-and-charging-handle.html |
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Posted: 6/28/2015 2:08:15 AM EDT
[#9]
I just assembled one of the MOE kits. Runs like a Singer sewing machine...
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Posted: 6/28/2015 2:09:20 AM EDT
[#10]
I just assembled one of the MOE kits. Runs like a Singer sewing machine...
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Posted: 6/28/2015 8:31:32 AM EDT
[#11]
I admit I'm tempted...even though "Each upper is assembled to order, and test fired to check gas function."
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Posted: 6/28/2015 9:04:57 AM EDT
[#12]
Quote HistoryQuoted: Note non-ramped bolt. |
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Posted: 6/28/2015 10:54:55 AM EDT
[#13]
It is not a performance issue.......it is a compatibility issue.....ramped you can use any AR hammer...unramped you need a specially designed 9mm hammer.....an unramped bolt works fine with a hammer intended to run with it.
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Posted: 6/28/2015 10:59:04 AM EDT
[#14]
Quote HistoryQuoted:
It is not a performance issue.......it is a compatibility issue.....ramped you can use any AR hammer...unramped you need a specially designed 9mm hammer.....an unramped bolt works fine with a hammer intended to run with it. I'm pretty sure PSA kits come with a standard hammer. |
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Posted: 6/28/2015 1:25:16 PM EDT
[#15]
Correct. They are shipping unramped bolts with standard hammers.
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Posted: 7/7/2015 6:59:12 PM EDT
[#16]
Quote HistoryQuoted:
Correct. They are shipping unramped bolts with standard hammers. My two i ordered came with Ramped bolts and standard hammers. |
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Posted: 7/8/2015 6:00:02 AM EDT
[#17]
Quote HistoryQuoted:
My two i ordered came with Ramped bolts and standard hammers. Quote HistoryQuoted:
Quoted:
Correct. They are shipping unramped bolts with standard hammers. My two i ordered came with Ramped bolts and standard hammers. It should be specific in the kit which bolt is supplied. mine was having some FTF issues that hopefully can be worked out. |
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Posted: 7/8/2015 4:16:52 PM EDT
[#18]
Quote HistoryQuoted:
Correct. They are shipping unramped bolts with standard hammers. I'm somewhat confused. Does this mean they will have problems unless the bolts are sent off to be ramped? Or unless one acquires and installs a 9mm hammer? If so, why would they sell them in this configuration? |
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Posted: 7/8/2015 5:04:48 PM EDT
[#19]
OST -
I would have bought if it was a 10.5 barrel. |
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Posted: 7/8/2015 6:41:53 PM EDT
[#20]
Quote HistoryQuoted:
It should be specific in the kit which bolt is supplied. mine was having some FTF issues that hopefully can be worked out. Quote HistoryQuoted:
Quoted:
Quoted:
Correct. They are shipping unramped bolts with standard hammers. My two i ordered came with Ramped bolts and standard hammers. It should be specific in the kit which bolt is supplied. mine was having some FTF issues that hopefully can be worked out. The kits I bought specified Non-Ramped bolt carriers, but included them. I have a feeling it was only until they ran out of non ramped, then all kits got ramped ones. |
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Posted: 7/9/2015 8:03:37 AM EDT
[#21]
The 9mm upper I just bought was described as not having a ramped bolt but it came with one.. And of course between the time I ordered it and received it I purchased a 9mm hammer...
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Posted: 7/9/2015 8:07:07 AM EDT
[#22]
Quote HistoryQuoted:
OST - I would have bought if it was a 10.5 7.5 barrel. Fixed |
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Posted: 7/9/2015 9:50:12 AM EDT
[#23]
Quote HistoryQuoted:
The 9mm upper I just bought was described as not having a ramped bolt but it came with one.. And of course between the time I ordered it and received it I purchased a 9mm hammer... I ordered 2 of them. Don't feel bad. One of my PSA uppers however has a barrel nut thats not lined up. |
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Posted: 7/9/2015 9:00:27 PM EDT
[#24]
Picked up mine today. Non-ramped bolt. "A3" upper has no provision for dust cover or gas deflector (I should have looked at the picture on their site more carefully), but does have hole for gas tube. Which is lucky, since their product description does say that each upper is "test fired to check gas function." Haven't weighed the buffer or checked the barrel nut for tightness, but the front sight base appears lined up at first glance.
Assuming the magazine adapter fits without any issues and this feeds and functions properly, I'll be satisfied with the deal, but I admit the lack of dust cover and gas deflector gets me a little. Still, that's on me. 
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Posted: 7/9/2015 9:49:01 PM EDT
[#25]
Quote HistoryQuoted:
I'm somewhat confused. Does this mean they will have problems unless the bolts are sent off to be ramped? Or unless one acquires and installs a 9mm hammer? If so, why would they sell them in this configuration? Quote HistoryQuoted:
Quoted:
Correct. They are shipping unramped bolts with standard hammers. I'm somewhat confused. Does this mean they will have problems unless the bolts are sent off to be ramped? Or unless one acquires and installs a 9mm hammer? If so, why would they sell them in this configuration? Unramped bolt on standard hammer will eventually result in a broken hammer pin |
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Posted: 7/10/2015 4:52:03 PM EDT
[#26]
Got my Kit today and assembled in 90 minutes using an RRA 9mm hammer
upper matches my dueling dicks lower perfectly I will review it after test firing. |
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Posted: 7/12/2015 12:31:37 PM EDT
[#27]
Quote HistoryQuoted: Fixed Quote HistoryQuoted: Quoted: OST - I would have bought if it was a 10.5 7.5 barrel. Fixed Really doesn't matter how long the barrel is unless they start threading them 1/2 28. You can have them cut to any length when you have them re-threaded to the common 9mm silencer thread pattern. |
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Posted: 7/13/2015 11:59:26 AM EDT
[#28]
Quote HistoryQuoted:
I'm pretty sure PSA kits come with a standard hammer. Quote HistoryQuoted:
Quoted:
It is not a performance issue.......it is a compatibility issue.....ramped you can use any AR hammer...unramped you need a specially designed 9mm hammer.....an unramped bolt works fine with a hammer intended to run with it. I'm pretty sure PSA kits come with a standard hammer. I am absolutely sure they do. I am on hold with them right now, in order to discuss that. Their phone customer service seems pretty good. I e-mailed twice before I called. The acknowledged a lack of technical knowledge on his part and is sending it to his armorers for a response. The rep anticipates PSA sending a new 9mm hammer out. I'm probably still going to have the bolt ramped because it also reduces the force needed to cock the hammer. Once I get an official response from PSA, I plan to test fire with an unramped bolt and AR-15 hammer. After that, I'll change to the AR-9 hammer and note any changes in performance. Once the ramped bolt comes back, I'll note any changes there, too. From what I have been told by shooters who are more experienced with the AR-9, the ramp and the hammer are intended to reduce the force that is transferred to the aluminum receiver via the hammer pin. (I am hoping that a few test shots won't hurt it because I'm building it on a rather nice receiver (Thor), but I'll probably look for a generic receiver marked for Multi-cal. |
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Posted: 7/13/2015 9:22:10 PM EDT
[#29]
Quote HistoryQuoted:
I am absolutely sure they do. I am on hold with them right now, in order to discuss that. Their phone customer service seems pretty good. I e-mailed twice before I called. The acknowledged a lack of technical knowledge on his part and is sending it to his armorers for a response. The rep anticipates PSA sending a new 9mm hammer out. I'm probably still going to have the bolt ramped because it also reduces the force needed to cock the hammer. Once I get an official response from PSA, I plan to test fire with an unramped bolt and AR-15 hammer. After that, I'll change to the AR-9 hammer and note any changes in performance. Once the ramped bolt comes back, I'll note any changes there, too. From what I have been told by shooters who are more experienced with the AR-9, the ramp and the hammer are intended to reduce the force that is transferred to the aluminum receiver via the hammer pin. (I am hoping that a few test shots won't hurt it because I'm building it on a rather nice receiver (Thor), but I'll probably look for a generic receiver marked for Multi-cal. Quote HistoryQuoted:
Quoted:
Quoted:
It is not a performance issue.......it is a compatibility issue.....ramped you can use any AR hammer...unramped you need a specially designed 9mm hammer.....an unramped bolt works fine with a hammer intended to run with it. I'm pretty sure PSA kits come with a standard hammer. I am absolutely sure they do. I am on hold with them right now, in order to discuss that. Their phone customer service seems pretty good. I e-mailed twice before I called. The acknowledged a lack of technical knowledge on his part and is sending it to his armorers for a response. The rep anticipates PSA sending a new 9mm hammer out. I'm probably still going to have the bolt ramped because it also reduces the force needed to cock the hammer. Once I get an official response from PSA, I plan to test fire with an unramped bolt and AR-15 hammer. After that, I'll change to the AR-9 hammer and note any changes in performance. Once the ramped bolt comes back, I'll note any changes there, too. From what I have been told by shooters who are more experienced with the AR-9, the ramp and the hammer are intended to reduce the force that is transferred to the aluminum receiver via the hammer pin. (I am hoping that a few test shots won't hurt it because I'm building it on a rather nice receiver (Thor), but I'll probably look for a generic receiver marked for Multi-cal. KNS pins help too. |
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Posted: 7/14/2015 8:17:23 AM EDT
[#30]
I just ordered one of PSA's kits too and have a question about hammers. Has anyone used the DPMS rounded hammer for this? I've read a few reviews (other forums) that have used these without issue in a lower that they've used for both 5.56 and 9mm uppers. Until I can build a dedicated lower, I was planning on using my SIG M400 lower for this.
On the other hand, I might luck out and get a ramped BCG. |
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