Meet my latest build - with special thanks to Dellet
Posted: Sat Jul 14, 2018 9:22 am
LONG post with lots of pics:
I got the chance to attend a carbine class last Sunday and use my latest build, an SBR built on an 80% BRS billet receiver set. She ran like a dream and is producing a little better than MOA accuracy right off the workbench with the 300 upper. The 5.56 upper, not so much, I have some work to do there. I want to offer a shout out to Dellet too. I got it finished WAY later than planned and had almost no time to work up a load. He was gracious enough to look at the details of the build and what components I had on hand and with his advice, I had a working, accurate load developed in an afternoon.
Here are some pics, I will give you the details after the pictures.
As for the build, I really enjoyed doing it BUT it turned into a 2 year process. This is my first SBR that I originally intended to have done LAST summer.
Parts -
* Receiver Set - BRS 80% unfinished with an extra upper. I had the CNC engraving done professionally before doing the 80% completion myself. I then had it anodized to mil-spec. The serial number has significance for me which you can likely figure out for yourselves. I also had position 3 engraved with the 'I Wish' because I do... As for the BRS set, I likely wouldn't buy another one. The dimensions on the lugs are just plain sloppy. I was pretty disappointed with that part.
* Barrels - the 300 barrel is a MASP branded 1:8 Heavy Profile barrel that I believe is OEM'd by Ballistic Advantage. I had the length cut down to fit the handguard and leave enough room for the Supressor Cover. The 5.56 barrel is a 1:7 M4 profile that was shortened as well. Both barrels have ASR Breaks that were timed rather than shimmed.
* Hand-guards are both 10" Knight Rails from Fortus because I like the look. The middle sections are M-Lock
* Scopes are both Primary Arms ACSS - 300 is 1-6 the 5.56 is 1-8
* Mounts are both Burris Peeper but not the quick release. I debated that back and forth but in the end went with what was in stock locally
* Trigger is a Giessle SSA-E that I love. I may try a new trigger on my next build but I really enjoy this trigger and have a lot of rounds on one.
* Bolt and BCG is a JP Low Mass and it is the first time I have used one. OMG - AMAZING component. Truly, as fast as I could pull the trigger and the chevron in the scope simply didn't move. NO MUZZLE RISE at all, NO sight picture realignment, is simply stayed on target.
* Gas Blocks are both Odin Works adjustable. I did have the barrels dimpled but I am not sure it was really that necessary.
* Finally my favorite part of the whole project. MASP Industries charging handles. I have shot SO many charging handles over the years I have lost count. These are hands down the best.
1.) the gas diversion is the best I have ever seen. VERY well designed. Regardless of back-pressure and rate of fire, I simply don't get gas back in my face at all.
2.) the designs are truly ambidextrous. One is the traditional type but with better, far less sloppy tolerances. The handle part is interchangeable and they have lots of options.
3.) the one design is actually latchless AND works with suppressed rifles. Basically you can adjust and tune the spring tension for your rifle/load combo like a gas block.
edit - * Forgot about the LAW folding stock adapter. Only bummer with it was that I couldn't use my silent captured buffer spring. MASP agreed to make a different extension for me that will allow it in the future BUT I had to deal with the spring twang for now.
edit - * The bolt release is the Giesle enhanced but I just put that on this morning so no experience with it yet...
If there is interest in the handles, I asked the owner of MASP and he said he would do a group buy on them.
I am happy to answer questions if you have any about the build or the class. I will be posting more as I play with loads, and try to get the 5.56 set up to run a little better.
Thanks for reading if you are still engaged by this point in the post.
I got the chance to attend a carbine class last Sunday and use my latest build, an SBR built on an 80% BRS billet receiver set. She ran like a dream and is producing a little better than MOA accuracy right off the workbench with the 300 upper. The 5.56 upper, not so much, I have some work to do there. I want to offer a shout out to Dellet too. I got it finished WAY later than planned and had almost no time to work up a load. He was gracious enough to look at the details of the build and what components I had on hand and with his advice, I had a working, accurate load developed in an afternoon.
Here are some pics, I will give you the details after the pictures.
As for the build, I really enjoyed doing it BUT it turned into a 2 year process. This is my first SBR that I originally intended to have done LAST summer.
Parts -
* Receiver Set - BRS 80% unfinished with an extra upper. I had the CNC engraving done professionally before doing the 80% completion myself. I then had it anodized to mil-spec. The serial number has significance for me which you can likely figure out for yourselves. I also had position 3 engraved with the 'I Wish' because I do... As for the BRS set, I likely wouldn't buy another one. The dimensions on the lugs are just plain sloppy. I was pretty disappointed with that part.
* Barrels - the 300 barrel is a MASP branded 1:8 Heavy Profile barrel that I believe is OEM'd by Ballistic Advantage. I had the length cut down to fit the handguard and leave enough room for the Supressor Cover. The 5.56 barrel is a 1:7 M4 profile that was shortened as well. Both barrels have ASR Breaks that were timed rather than shimmed.
* Hand-guards are both 10" Knight Rails from Fortus because I like the look. The middle sections are M-Lock
* Scopes are both Primary Arms ACSS - 300 is 1-6 the 5.56 is 1-8
* Mounts are both Burris Peeper but not the quick release. I debated that back and forth but in the end went with what was in stock locally
* Trigger is a Giessle SSA-E that I love. I may try a new trigger on my next build but I really enjoy this trigger and have a lot of rounds on one.
* Bolt and BCG is a JP Low Mass and it is the first time I have used one. OMG - AMAZING component. Truly, as fast as I could pull the trigger and the chevron in the scope simply didn't move. NO MUZZLE RISE at all, NO sight picture realignment, is simply stayed on target.
* Gas Blocks are both Odin Works adjustable. I did have the barrels dimpled but I am not sure it was really that necessary.
* Finally my favorite part of the whole project. MASP Industries charging handles. I have shot SO many charging handles over the years I have lost count. These are hands down the best.
1.) the gas diversion is the best I have ever seen. VERY well designed. Regardless of back-pressure and rate of fire, I simply don't get gas back in my face at all.
2.) the designs are truly ambidextrous. One is the traditional type but with better, far less sloppy tolerances. The handle part is interchangeable and they have lots of options.
3.) the one design is actually latchless AND works with suppressed rifles. Basically you can adjust and tune the spring tension for your rifle/load combo like a gas block.
edit - * Forgot about the LAW folding stock adapter. Only bummer with it was that I couldn't use my silent captured buffer spring. MASP agreed to make a different extension for me that will allow it in the future BUT I had to deal with the spring twang for now.
edit - * The bolt release is the Giesle enhanced but I just put that on this morning so no experience with it yet...
If there is interest in the handles, I asked the owner of MASP and he said he would do a group buy on them.
I am happy to answer questions if you have any about the build or the class. I will be posting more as I play with loads, and try to get the 5.56 set up to run a little better.
Thanks for reading if you are still engaged by this point in the post.