Prariedog

Aridus Industries makes a lower mount but not for your optic. https://www.aridusindustries.com/product-category/crom/

I have been using it for a bit over a month. It has helped me identify problems that I wouldn't be able to easily diagnose. I disagree as to waiting to review the data. When you see how much you move you concentrate on a real clean brake of the trigger to limit any sight movement. I ended up mounting the unit at the bottom of the magazine so I could practice drawing with when dry firing.

One thing that helped me was to concentrate on driving my non-dominant hand faster in the draw. This had the affect of speeding up my dominant hand in the draw. It helped me quite a bit in getting my speed up. Combining this with dry practice was very helpful.

Well I decided to go smooth on mine but I was sent a mis-badged one. It is not too bad I like it. One thing I was surprised with is that the AP hand guard deflected less than some of my other aluminum hand guards that I own. Either way they are a quality product. One grip is that it a little to big I would prefer if it was a slightly smaller diameter.

BagDrag has it right on the money.

Question, did you install the gas tube like JP states in their instructions? Just wondering if the adj. screw is hung up on the gas tube.

Nordics are reasonable as are AP custom carbon fiber. Recently installed a ap and am very impressed.

Seeing as you have posted in a few threads, as all have said JP is your best bet. ASA is a lower tier rifle manufacturer. Your money would be better spent on the JP. The price is hard to swallow but it is one of the best on the market. I love mine. Wish i could afford a few more. Built mine form a barrel kit and bought all the parts and assembled myself. Works better than any other rifle I own. If you are worried over price find a used one for sale. Outside of that just buy it and cry once.

No, it just bolts on.

Heat sink specs http://www.jprifles.com/instructions/JP%20THERMAL%20DISSIPATORS.pdf

I noticed a large difference in the heat dissipated. Not sure if really needed in a match rifle but I could tell a real difference shooting prairie rats. Rifle shoots sub moa so no issue with accuracy. Weight is not really an issue. I am very happy with mine. Call JP and they can talk to you about it but in my opinion if you are going to shoot high volume it is worth it.

I have a couple of Ar 15 lowers from sun devil. The receivers are billet and do have a screw to take out any slop between the upper and lower receivers. Quality is very good. I am happy with them and they have mated up tight with other uppers.

Can I please ask why you recommend losing the cooling fins for this setup? I just put together my JP barrel kit in 16 in light barrel with the heatsink (cooling fins). Do you think they are a waste and aren't necessary? If so why, weight, cost etc. thanks so much for any insight I believe because of the extra weight. That said I really like the fins on my 18" med. profile. Helped to keep the barrel and hand guard cooler when running a bunch of rounds through the barrel shooting prairie dogs.

Other than changing out the cheek piece to the taller one, no. Stock from the factory fit great.

That is what was available at Brownells last November otherwise I would have gone with the light barrel. It sucks trying to build a rifle with top quality parts on a budget.

I personally would like to have a light profile but JP only sells their barrel kit in medium contour. That said I build for JP parts a rifle similar to your. I am very happy with it and the thing is very accurate. You will be happy with it when you see your target.

Might I suggest turning down the barrel to .750 under the handguard. Dropped enough weight off my BCM 20" SAM-R barrel to make it comfortable to carry and shoot all day. Cost should be relatively cheap as it is easy to do.

I run this same set up on one of my varmint guns. Works great.

If you have no concept how a trigger and disconnector work then send it in. Otherwise JP has a great video on their site that shows what to do. Take your time and it will go fine. If you screw a part up they will exchange it for you at minimal cost. Much like assembling your own rifle it is good for learning and will help you diagnosis a failing trigger.

I recently built a 20" with a BCM Sam-R barrel but then turned it down to .750 under the hand guard. I am very happy with it, as you stated, light weight and well ballanced. Easy to carry all day as a hunting rifle also. Was this the full profile Sam-R or the fluted one you started with? I used a full profile barrel rather than the fluted. I was going to have it fluted after turning but was happy with the results after turning it down.

I recently built a 20" with a BCM Sam-R barrel but then turned it down to .750 under the hand guard. I am very happy with it, as you stated, light weight and well ballanced. Easy to carry all day as a hunting rifle also.

After running a DMW speed loader I finally fixed my loading issues by buying a versa max. Not everyone has those options but it was a good move. Liked the 1100 love the versa max.

I have used JP and BCM recently with good results. The JP I used on a prairie dog shoot with excellent results. Heavier than I liked with the med. weight barrel but accuracy was awesome and the barrel stayed cooler with the cooling fin system. The BCM was a heavy wight barrel that was turned down to .750 under the hand guard. It too worked well just not as good as the JP.

They have rifles available through their rifle ready program. Give them a call. I just assembled a rifle using their parts with my receiver and their quality is tops.

You could also run the JP captured spring for a collapsable stock. I'll let you know how it works Friday.