That's really sweet
![😎](//twemoji.maxcdn.com/2/svg/1f60e.svg)
. I have an early 2000's J&G/Doublestar Dissipator upper on the first AR lower I ever built from scratch. FSB at rifle position, low-profile aluminum gas block at the carbine position. Heavy profile 1:9 barrel as well.
Just because I like to tinker with things, I recently ordered a Spinta Dissipator barrel that I intend to swap out on it. I called and spoke with them about some details. It's a hybrid barrel contour - heavier than their discontinued lightweight Dissipator barrel (they had problems with those heating up too fast) but lighter than a conventional heavy barrel. The gas port is opened up to 0.115" for reliability (rifle position, so FSB will be functional). The guy told me that it should cycle fine with my current rifle buffer using full-power ammo, but that folks who download lighter loads run carbine buffers.
I plant to send it to ADCO to have the FSB drilled and pinned, unless someone has a preferable alternative to suggest.
https://www.spintaprecision.com/16-223- ... nsion-1-8/
16" .223 Wylde Dissipator Barrel w/NP3 barrel extension 1:8
Reliable dissipator barrel
16" dissipator barrel
.223 Wylde chamber (will also work with 5.56 NATO)
NP3 barrel extension
NP3 has a high lubricity and low friction co-efficient
1-8 twist
Nitride finish
Rifle Length Gas
.750 gas block area
1lbs 12oz
4150 Chrome Moly Steel
M4 feed ramps
Longer rifle length gas system produces smoother recoil impulse compared to mid and carbine length gas systems
1/2x28 threaded
Made in USA
....and some rin up hill and down dale, knapping the chucky stanes to pieces wi' hammers, like sae mony road-makers run daft - they say it is to see how the warld was made!
Saint Ronan's Well - Sir Walter Scott, Bart. (1824)