11-03-23: contrary to yesterday's post, i'm not going to build a race-gun, not anytime soon, all of the nice parts add-up in a hurry, but eventually i'll use that barrel for a light-weight maneuverable short-range rifle, the kind that a guy can use in a 3-gun challenge... the question of how much weight to shave/save in the build comes down to budget, these guns aren't cheap... but, guns are similar to tennis racquets and golf clubs (things i use to customize for profession), it's more balance than over-all weight that can make the gun easier to point quickly, or a shaft to flex just right, or a racquet that feels like it's swinging itself... so i'm not going to spend a ton of money to make a super light-weight speedster, maybe just a well-balanced soft-shooter that everyone would enjoy, maybe that's my goal with the 14.5 CHF 'optimum weight' barrel from Spike's Tactical, might as well make it a pleasant shooter... i usually assemble brick-shit-house type of ARs, but now i'm trying to tune them and balance them better, learning how to customize ARs for balance and fluid movement is like figuring out how to customize golf-clubs and tennis-racquets... you could even tune a gun based on specific loads/rounds you prefer, and exactly what you want to do with it... i don't shoot enough to even consider the exact load i prefer, so, pretty light, well-balanced, and soft-shooting are going to be the goals with this build... according to one person who bought the same barrel they had to enlarge the gas-port to get it to cycle .223 dependably, they said it's more 5.56-pressure tuned... i don't want to open the hole up, but maybe i should, and then put an adjustable gas-block on it so i can tune it down in case i open the hole too much... we'll see, time will tell... but it's getting too close to Christmas to be buying parts for this next build, it'd be cheaper for me to finish the 300-blk pistol, the gas-block doesn't have to be too fancy/light-weight, neither do the hand-guards or BCG... maybe that's my next project to finish, the 416 match-grade barrel was a blemish that was on a crazy sale, so that's how that project was motivated/birthed/triggered... maybe someday my son get's the heavy 300blk-upper that i currently have, and i'll build a slightly light version for that caliber with the barrel i've got laying around the gun safe... i want to make a 14.5" 308 in the future, i probably won't ever shoot it more then 300-500 yards, so 14.5 should not terribly reduce the efficacy for my expected use... a 5.56 requires 20" to burn all of it's propellants, and they use 14.5" 5.56 barreled-rifles all of the time now... a .308 only requires 16" to burn all of it's propellant/powder, so there you go... i might do a nostalgic-looking AR-10 chambered in .308 with a 14.5" barrel, i think that's what Sig's new designated-marksman rifle (i think it's the Spear) uses, i might go for the same powered optics too, a 1 - 6 x 24mm... i also want to do a sort of retro-build, i have more ar-10 receivers/others with no plans, so i'll probably do another .308 platform, but i want the retro one to have a wood furniture-set (stock, grip, hand-guards), the sets aren't over-priced either, the prices are comparable to decent free-floating and adjustable counter-parts, i might do the a-tower front sight-post, with a carry-handle A-2 style rear-sight on the wood furniture, it would be a little heavy, but a nice/functional and pretty rifle to pass down to the next generation, i think it'd be pretty, and i could tame-tune the felt-impact/kick of the .308 (or 7.62 NATO) round to make it fun to shoot... i have green or brown receivers to base the wood-build from, they'd both look sweet, maybe i do both the same if i like the first one... we'll see, time will tell, right now the gun-fairy money has dried-up, so this is all just considerations for future builds... the last build i finished was an AR-pistol, i made a dedicated .22LR, i used a 9" barrel, so i had to build it to pistol-specifications for legal-sake, it's a fun little shooter, it's probably my favorite AR so far (i've bought and sold over twenty over the years), the 5.56 is pretty noisy, but it doesn't kick much at all, the .300blk is softer-shooting, and generally quieter in my opinion, but a 22lr is an awesome plinker, i should have made it lighter, but i made it to work after a truck drives over it, instead... i recommend a 22-conversion kit, or a dedicated .22-upper receiver for folks with the standard 5.56 AR... the beauty of the AR is it's versatility to use other calibers from the same lower receiver, the unfortunate legal-issue is that you can't swap-out certain upper and lower receiver combinations because of definitions of pistols versus rifles versus short-barreled rifles... it's sort of a pain in the ass legal-thing for gun-enthusiasts/hobbyists, but hey, whatever, it's a law/definition which we are enslaved to abide lest you get 'SWATted' by ATF-folks with itchy trigger-fingers, the manic guys that just downed an energy-drink because they have to do a late-night raid... no one wants to find themselves in that scenario, so i keep all of my stuff on the up-and-up, including current knowledge of what constitutes a legal pistol-configuration, versus a legal rifle-configuration, versus a short-barreled rifle, versus a stripped 'other'... in all practicality, i could have just built a little .22LR upper-receiver to fire from my older .300blk pistol's lower-receiver, but i like the idea of having a stand-alone 22LR, it's crazy-fun, i'm still trying to figure-out what sights or optics to use for it, right now it's borrowing the old beat-up red-dot from the 300... i'm telling you what, the big guns are nice and all, and can hunt some substantially-sized critters, and offer adequate protection/defense, but the little 22 is your fun back-yard plinker, the one you shoot the can off of the fence with, and then make the can dance for the rest of the magazine, it's thaaat kind of fun little shooter, the kind that we're likely to wear the rifling out of the barrel over the next decade, i shouldn't have made it so darn heavy, though... but Laura likes it too, i'm sure Hannah would love it... i should build one for each of them, some nice light-weight plinkers... i sincerely hope to see the ATF's definition of SBRs modified, or, the whole 'tax-stamp' process eliminated for SBRs... i don't mind complying with the appropriate permission-process to own NFA-items, i'm going to build some in the future, and i will go along with each required step to do so, but i'm waiting until we move/re-locate... you have to get some extra permission just to cross state-lines with NFA-items, which is a royal pain in the ass thing to meet legal requirements (i live three minutes to Mass.)... so, when we finally move (hopefully in the next year or so), i'll start the process of building some SBRs, and building--or buying-- suppressors for a few calibers too, but i don't have the space to shoot much where we live, and i don't want to prioritize the NFA-approval process for something that i'll have to ask permission to travel with when we move... that's actually the logic that prevented me from taking advantage of the Biden/Garland free SBR-thing regarding folks who owned legal pistol-stabilizing braces, i have two of them (neither are installed right now), i'm still fine to legally own them, they are not illegal to install on something that meets the legal definition of a rifle, just not a pistol right now, not until the Garland ruling is over-turned, and i might buy a couple more of them... the whole brace-registry thing was free in regard to the typical $200 tax-stamp required for NFA items, but you still have to pay to have it engraved within ATF-specs, and now you are greatly limited to where you can travel with it and shoot it... i live on the border of Mass, most of my shooting buddies live in MA, i would have to ask the ATF for permission about a month's prior notice to go shoot an SBR with the guys, but my pistols are no problem, i just can't bring magazines with > 10 rd capacity... so, all of the SBR and NFA items will wait until we move, i don't need silly legal-hurdles holding/preventing me from moving anytime we choose, i'll be thinking about a zillion different things when we move, i don't want to turn myself into a felon by forgetting a rule about interstate-travel, and what constitutes a pistol from a rifle from an SBR from an 'Other'... silly rules are a pain in my arse, but it's what you have to pay attention to if you want to own/carry potentially dangerous mechanical devices, such as firearms... in closing, it seems that finishing a 556 race-gun is too much money for now, and the 300blk home-defense pistol will be less money to complete, and the .308 builds are for future endeavors, i thought the green and brown anodized 308s looked pretty sweet (even the blemished items that i bought), so the 308s will have a unique look to them, especially if i finish them off in wood, i think one will be wood, and one will be a light-weight 14.5" with a pinned/welded muzzle-device to make it legal-length, it's cheaper than an NFA shorty, and i could go shoot one in MA tomorrow if we wanted to... OK, just writing about the future work is enough gun-therapy for me today... if we don't move to a place with enough property to shoot on then i'll be a moron with too many guns sitting around that are not getting used, i don't want to be thaaat-guy... speaking of which, i still haven't shot the big .458 socom upper yet, i could hunt brontosaurus (big hogs more likely) with that cartridge, the partial kit came with a stiffer buffer-spring that Wilson Combat recommends using, so i might make a dedicated rifle for the big-boy 458scm, and not just leave it as a completed 'upper', i've got a stripped 'other' that i'd just have to complete for that... hmmm, maybe i ought to finish the lower for that first, that's pretty easy, and the cheapest project to finish... OK then, first the 458 rifle, then the 300 pistol upper, then the 556 race-gun upper, and then the 308s... probably something like that... that's enough to keep me busy for a couple of years, unless i hit the lotto, then it's a month or two of hobby-therapy... i don't normally have these many guns, or have that many build projects going on simultaneously, but the AR-platform is one of the best invented, and with all of Biden and the democrats threatening the legality of them, well, i reacted by making sure i had enough receiver sets that i could build almost every caliber that i thought i might want, at the time, i might get a few more now, as wild-cards, because--you know--maybe an 8.6blk build, or who knows what... harsh rhetoric from American globalists and marxists causes firearm buying cycles/frenzies, and i re-acted to it this time around, i didn't during Obama, but i did with The Brandon... if Aero Precision comes out with another sweet builder's set i might be tempted to get another Other for future-sake. -- ct