Ok, not a full on genuine RECCE, but...

I have a BCM 16" middy that I am very happy with but I think I want to change it up.  It has a A2 fixed front sight and a DD Omega 9" fore end, BCM / Diamond Head folding rear BUIS, BCM bolt and CH and a BCM comp.  I have a Vortex Strike Eagle (inbound) for an optic.  The gun onlys sees action at the range and some local action matches.  I am thinking of removing the DD Omega and replacing it with a 15" KMR Alpha.  I would shave down the A2 front sight to fit under the KMR.  I have done the shave thing once before and it is very very easy.  I would replace the front sight with a folding Diamond head and sell the Omega on the EE.

Anyone see any pitfalls to this plan?  If anyone has done this, please let me see pics of the results.

Thanks

I've heard of that kind of thing quite a bit. In fact I had a DelTon HBAR upper I sold to a guy who did just that with it.

Go for it and post pics!

Nothing wrong with that, your plan seems solid to me.

Sounds like it will look something like this

WOW.  Thank you for the picture.

What kind of accuracy do you require? I've done a couple of recce builds with standard chrome lined barrels and they were never as accurate as I wanted, fun though!




Two of those guns now have LaRue barrels.

The purpose of this gun is range stuff and some local matches, I will define my need at this point as being able to consistently put every round in the A zone at 300 yards after exertion and in different shooting positions (off hand, kneeling, prone). That is for me and the rifle.
Once I achieve that goal, I will work further out till I am sure I need to change something.  I have made some good shots out to 450 yards with this gun using a GRSC 1-4 optic, I just cannot do it on demand anymore.  (My GRSC is getting wonky and I got a great deal on Strike Eagle).  The rifle shoots better than I do at the moment.  Out of practice, out of shape and developing old guy eyes... Getting back in shape is easy and getting time to practice is difficult.  I would love to get to a point where I can shoot better than this guns potential.

My 16" LT Stealth with Original KMR FWIW.

I ordered the 15" KMR ALPHA and the folding Diamond Head.  I also ordered a BCM gas block.  I have one question, will the taper pin channels interfere with the placement of the dimples for the new gas block?  

 
I've never had any issues when changing a rifle with a FSB to a LPGB.

Quick update, pics later.
I ordered the 15" KMR Alpha, gas block and folding front sight late Saturday evening and just got my shipping notice.

I was still debating about using the gas block as I was not sure if I could do the dimples and be sure I had the gas port holes aligned.  I saw a dmpling jig from BRD and ordered it so now I sure I will use the gas block.

During lunch today (I work from home) I decided to take DD Omega rail off and get it ready to go on the block.  Asked myself how hard can it be to remove the FSB.  Two sharp "taps" on each side and off it came.  I did use the big punch to get it started then finished with a 1/8 punch to push it through.

Was that far along so I removed the BCM comp and pulled the barrel from the upper using a Mapul BEV block and now I have a stripped barrel.

I cannot believe how much carbon was on on the crown.  Did a quick pass through bore and chamber the with some Hoppes, dry patch then light oil.  I soaked some patches in Hoppes and used that to loosen up the fouling on the crown.  Night and day difference. While I am waiting for the BCM box to come, I will detail clean and lube everything else.  

One last question about the set screws.  I have read to use everything from nothing to Rock Sett on the threads.  My plan is to use Red 271 Loctitie, it is good to 300 degrees.  My logic is that this not a mag dump or full auto gun.  Will this be ok or do I really need to Rock Sett?

Thanks

Go it finished up Friday.  I did get some so so phone pics which I will try to post up ASAP.  I used Red Loctite and fired about 140 rounds Friday 16 hours after assembly.  I got the barrel pretty hot, there was a nice heat mirage coming off the barrel.  Firing all the rounds took about 30 minutes.  Using the Strike Eagle at the 25 yard ranges was ridiculously easy.  
Lessons learned.
1)  Not as hard as I thought.
2) Biggest perceived issue was lining up the gas block.  The BRD jig solved this issue, but the cost of the gas block and jig cost me about $100 more than I had planned.  However, it took about 15 to do the job rather the time to grind down the A2 sight tower.  Now I can replace any barrel I need to or gouge my friends to use the block LOL.
3) May not be a secondary market for DD Omega rails  (My rail is still on the EE...)
4) I placed two dimples and one of the them ran into the rear roll pin track but it seems to hold fine so far.

Would I trust my life to this carbine?  Who knows, not a duty weapon and I have other dedicated proven HD carbines and SHTF weapons.  I will however use it to shoot more local club matches, if the S did HTF and this one was in my hands, I would not feel too bad.  LOL

Next step is to get a proper 50 yard zero and shoot the local match next Saturday.  I also want to see what it will do with 69 and 77 grn loads.

Sounds like it all went well. That jig costs, but you would have spent about that shipping it off somewhere.




In my experience, the EE goes through ups and downs with particular items. For weeks there will be tons of KAC M4 RAS sets all over the place for $100, or SOPMOD stocks, or sometimes the optics section will be full of NF 1-4x scopes. Then they're rare as hen's teeth. It's odd, but fortunately most of the waves have favored me.

Done for now.

I added a Primary Arms bi-pod and Tac-Shield 6"-9" adjustable bi-pod.  I have only shot it at 25 yards and it is monotonous drilling rounds into a single hole.  I want to get out to the 100 yard range this weekend and get a better zero.  I also want to try some 62grn Fusion, and some heavier match ammunition to see what it will really do.  
Thanks for following along.
Lower:
Blackwater lower (bought it from their armory when they were shutting down)
ALG trigger
Vltor A5 stock with rifle spring and buffer
Magpul grip and trigger guard

Upper:
(Started life as a BCM factory upper)
BCM upper and BCG
BCM GF CH
BCM 16" Mid barrel
BCM gas block
BCM KMR A
BCM Comp
BCM Diamond Head F/R BUIS

Vortex Strike-Eagle
Bobro mount

I have been shooting the "Poor Man's RECCE" indoors; so far about 300 rounds and everything is still together and tight.  Today I took it to the outdoor range since it was cold and rainy and I was actually off work.  
Below is one of my 50 yard targets.  I thought I fired five rounds but can really only see four holes.   PPU 75grn OTM.
30 rounds rapid fire of LC M855 aka green tip covered 4 of the squares at 50 yards, rapid fire.
My 100 yard target was a little higher and right and covered 4 of the 1" squares, again the PPU stuff. (Sorry no picture).
Thanks for looking.