Off topic. cali ar15 build

I personally am not familiar with JSE surplus, but I also have never heard anything bad. It looks like it is 416R SS barrel. SS used to be all the hype, though I am not sure the opinion today. The "R" makes is a bit softer than 416 for the machining process. I believe 416R is G2G.

This barrel is 1:9 twist. I prefer 1:7 as it is a better all around ratio and good for home defense. If you shoot anything over about 65 grains you would want a 1:7.

Otherwise I have no other opinion on that one other than I simply prefer other brands for similar cost.

I would never use this for home defense, as least not in my house. I have a nice scatter gun for that. But I dont understand twist, doesnt a higher = better long distance? thats just how my simple thought process would see it, but have No idea.

As for other brands with similar cost. At 525$ for a full ready to go upper with a nice flat top and side mounting options and all. I have yet to see much close to this. Except that PTAC stuff that I asked if it was really that horrible due to such a cheap price. without reply yet.

All the BCM stuff comes without a BCG and I dont know if that means I have to adjust something in the upper to install that (I asked without answer yet so dont know). But I am not looking to Have To adjust anything, I hope.

All the Spikes Tact upper groups are back ordered it appears for 6-8 months?
 
There is a lot of discussion about what twist is best, and really it comes down to your particular ballistics and usage. 1:7 is a faster twist then 1:9. Think about a heavier bullet needing a faster twist to help stabilize it better for flight. 1:9 can provide better ballistics and terminal effects for a lighter bullet. Really this is preference and I am not certain there is a "correct" answer.

for me, I generally get better groups and better accuracy at longer distances with 1:7. I also seem to have better luck with "junk" rounds in a 1:7.. Others have different combinations and opinions so YMMV.

Never heard of PTAC, though they do seem pretty cheap.

You are correct about the pricing on that upper, I am working and not reading these posts close enough. I should check back after work. I would say a complete Spikes upper you are probably looking at about $100 more than that JSE upper. BCM does seem to run a bit more expensive overall. Your least expensive route would likely be piecing together something like a PSA upper with whatever accessories you want.

I will check back later today and provide some more useful information.

Oh, and you are right on the Spikes lag time. They seem to be very popular lately. I have the best luck stopping by the LGS and checking what they have on the shelf every few days.
 
Oh as for feds knowing. I will Reg trans the lower as per law.

Feds don't know what you buy as far as long arms go. They know you did a background check and that there's a 4473 sitting at the dealer. Any trace on the firearm has to go from mfg to first point of sale.

As of Jan 1,2014 long guns are registered at sale.

The 80 percent route is legal, as long as you are the one that machines the receiver, and you don't sell it without first putting identifying marks on it. This doesn't mean you can just start whittling out 80's and selling them. I know quite a few people who have done 80's legally just because they are private people. The other route for a long gun was cash and carry an 50+ year old one, but that has now been nixed in CA with the new long gun registration.


Flat top upper is an "A3" upper. You can throw a carry handle on it or an optic or whatever. That's the preferred upper for most people as it has the most options.

Dang, I keep editing this. :)

Building you're own, you become your own gunsmith, it's mainly tuning it. If you stick with quality parts you should be ok.

There are 3 different gas systems out there, which refer to the distance of the port in the barrel from the face of the bolt.

Carbine: 9"
Mid Length: 11"
Rifle Length: 13"

The distance from the port to the end of the barrel is how long pressure is going to be acting on the bolt carrier to eject/rechamber a round. A carbine 16" barrel has 7" of travel vs a mid length 16" barrel at 5".

We could start a whole thread on tuning one. Basically though first time out load 1 round in the magazine, shoot it. If the bolt holds back, then you should be fine. If it doesn't hold back, it's short stroking and you need to go to a lighter spring/lighter buffer.

.30 cal would be AR10 or LR308, chances are most .308 AR platform rifles you are looking at would be LR308. Radius at the rear of the upper receiver/lower receiver junction vs an angle cut.

Oh, and prices are cheap right now as there's a surplus from the 'panic' of last year. Mfg's/dealers overproduced AR stuff and now they have inventory sitting. Ammo demand still seems to be there, the whole demand for .22lr has me baffled though...
 
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Feds don't know what you buy as far as long arms go. They know you did a background check and that there's a 4473 sitting at the dealer. Any trace on the firearm has to go from mfg to first point of sale.

As of Jan 1,2014 long guns are registered at sale.

The 80 percent route is legal, as long as you are the one that machines the receiver, and you don't sell it without first putting identifying marks on it. This doesn't mean you can just start whittling out 80's and selling them. I know quite a few people who have done 80's legally just because they are private people. The other route for a long gun was cash and carry an 50+ year old one, but that has now been nixed in CA with the new long gun registration.


Flat top upper is an "A3" upper. You can throw a carry handle on it or an optic or whatever. That's the preferred upper for most people as it has the most options.

Thats about 90% greek to me.

I have no idea what a 80% is? I see stripped lowers. uppers, full uppers, full uppers with BCG and this and that, lower parts kit, etc...

Sorry but as I said anything AR was never even looked at by me, up till about 2 weeks ago. They were just big black and scary. Why I want one. lol.
 
Thats about 90% greek to me.

I have no idea what a 80% is? I see stripped lowers. uppers, full uppers, full uppers with BCG and this and that, lower parts kit, etc...

Sorry but as I said anything AR was never even looked at by me, up till about 2 weeks ago. They were just big black and scary. Why I want one. lol.

Oh, an 80 percent lower is an unfinished lower. The lower is the part that is considered the firearm. The government doesn't consider it a firearm though until more than 80% of the machining is done. So, you can now buy unfinished lower receivers and do the finish machining yourself. The GCA of 1968 allows and individual to machine their own firearm based on current designs. In 1968, we didn't have CNC's and cad drawings and all that. Now days you can slap an 80% finished AR15 lower in a mill and complete it in under an hour, with no record of it existing. Some people like that idea, and its legal.
 
I have a PTAC lpk from Palmetto coming in the mail, I will let you know what I think of it. BTW the Crossroads gunshow will be in Costa Mesa the 25-26, there are deals to be had, but you can easily be ripped off too.
 
Ok well went ahead and did a Daniel Defense full upper in light weight. once it shows up I will take it down to local store to purchase a lower. Just wanted to take the most important part down to make sure it fits well.

I am staying 223 so that ammo is in abundance and common with those I would poss go shorting with.

I may do a 308 win upper later, who knows.

Now on to a mid cost optics. Whats the real big difference between a halo and a reg red dot? just larger window?
 
yeah the DD ones (as well as most I was looking at) shoot both.
 
Go down and order your lower now. Get an Aero Precision, they make one of the nicest lowers. The upper will fit on the lower. It's all milspec, these are tinkertoy guns, build what you want.
 
Yep. I agree with dumpy.

I am more concerned with other things then Just what size hole. I have a shotgun and slugs if thats a concern.

I am though, be slowly talked in to a Savage 110 .338 lupua as my second riffle.

Very excited to get this one currently.
 
Then plz recommend something? I was looking at the Rock River Arms 2 stage.
 
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