It is the same! I went with the PSA 10.5" upper kit. It came with a very generic blade that i can already tell will be miserable to shoot with.
When I bought it, it was on sale. Niw it’s out of stock and not on sale lol
2 Likes
I am happy you put your pistol together!
3 Likes
So…that wrench doesn’t fit. It held enough for slightly less than 1/4 of a turn. Won’t budge the castle nut anymore. Can anyone recommend me a wrench?
1 Like
@spence, my AR parts/build kit is supposed to be here today so have not had the opportunity to try out this “AR tool kit” I bought yet:
… but it looks like it is going to work fine.
They also sell the tools individually …
2 Likes
Or you could use the Eric Hung hammer and punch approach discussed here:
1 Like
I’ve had a DPMS tool/wrench for so long I don’t even remember how I got it. It has a hardened steel "button that fits into the slots of “most” castle nuts. I don’t recommend ANY flat stamped sheet steel wrench because they do not harden it properly or at all. Once that nub or hook gets a little wear on it the whole thing is worthless.
Cheers,
Craig6
2 Likes
Got to try out the Outdoorsportsusa.com AR-15 tool kit today- it worked good 
The AR parts kit worked good as well - but not overly impressed with the trigger, at least not in initial dry fire testing 
Almost complete assembly:
4 Likes
Check Palmetto State Armory. For the price, their stuff is incredible.
2 Likes
Hi @Harvey, I used this one:
I think the provided trigger is a “Mil-Spec”. It actually has a clean break, it is just a lot harder pull than I am used to. I honestly didn’t pay any attention to the sear and hammer mating surfaces, was more focused on learning how to assemble it as I had never seen one apart before.
2 Likes
If you ever want to upgrade the trigger, try Velocity. You can catch them on sale. Interesting backstory on the owner…used to work for Timney.
2 Likes
Mil-spec can mean a lot of things 
If you’re interested in swapping it out cost-effectively, PSA has great triggers for a low cost. They’ve got three models well under $100 (altho seem out of stock right now).
2 Likes
Isn’t that the truth!
In a quick check I have not found one Military Specification referenced for any commercially available “MilSpec” AR trigger. Stepping out on the wrong side of a limb with a chainsaw running, I suppose they are at least IAW vague as the weekend weatherman MIL-W-13855 and MIL-C-71186.
Maybe someone else knows?
Edit: One thing for sure is they are not IAW this 
:
1 Like
So, not calibrated and only 1/2 pound resolution, I pulled out my 50 pound spring fishing scale. I measured the pull to break weight from 8-9 pounds. I checked my 1911 for reference and it was 5 pounds every time.
I removed and inspected the sear and hammer mating surfaces. The hammer actually looked pretty good, but the sear had some tooling marks/scratches visible to the naked eye. Knowing I had about $12 at risk if I messed it up, I decided to polish it. I used 2000 grit wet sandpaper laying flat on the kitchen counter. I was very careful not to change the geometry and maintain a sharp break edge. After reassembly and testing it has reduced to 6-7 pounds.
Before and after testing was done with no lubrication on any of the trigger parts. I was extremely surprised to get a reduction of ~2 pounds without modifying the trigger spring ( I wish I had thought to do a pull test on it prior to reinstalling the hammer). It is amazing how much better I like it now!
2 Likes