{"id":153642,"date":"2022-09-25T13:21:05","date_gmt":"2022-09-25T17:21:05","guid":{"rendered":"https:\/\/www.gunsamerica.com\/digest\/?p=153642"},"modified":"2022-09-25T13:21:05","modified_gmt":"2023-09-07T21:21:24","slug":"sig-fcu-build-take-1","status":"publish","type":"post","link":"https:\/\/gunsamerica.com\/digest\/sig-fcu-build-take-1\/","title":{"rendered":"SIG FCU Build Take 1"},"content":{"rendered":"\n
\"SIG
Fire Control Unit from Sig Custom Works<\/figcaption><\/figure>\n\n\n\n

The FCU\u2019s have been flowing for some time now, I know. But I wanted my first build to be something magical, and that has taken time to source parts for. Finally, everything came together this week. I, for one, think it was worth the wait.<\/p>\n\n\n\n

\"SIG
SIG brand slide completion parts<\/figcaption><\/figure>\n\n\n\n

What exactly is an FCU, anyway? It stands for <\/a>Fire Control Unit<\/a> and is like phase purple for SIG\u2019s plan to completely take over the striker fired pistol market. (If you are keeping score at home, it’s working.) The SIG P320 started life as a modular pistol, with the trigger group being the only serialized part. Trigger group, chassis, FCU- it has worn many names. But basically, all the parts that make a P320 (or a P365) a \u201cgun\u201d are held together and retained in the frame by one pin. Take the slide off, drop that pin out, and the entire bit that makes it go bang comes free.<\/p>\n\n\n\n

\"SIG
GoGun Gas pedal, a winning solution<\/figcaption><\/figure>\n\n\n\n

Which originally was pretty cool, but maybe not earth-shattering cool. It meant you could buy one gun, and theoretically change its configuration to anything you wanted. Buy a full size, you can make it a sub compact. But when it started, the only real options were SIG brand caliber conversion kits and grip modules. So you could have any caliber and combination you wanted, as long as you still wanted a plain jane SIG P320.<\/p>\n\n\n\n

\"SIG
Norsso Slides, and custom cerakote by MCM firearms<\/figcaption><\/figure>\n\n\n\n

That changed big time with the FCU concept. The FCU is just the serialized bit, at a price significantly cheaper than a factory P320. And SIG took an unprecedented step in recruiting the aftermarket to make P320 parts. Many times, a manufacturer will jealously guard the secrets to how they make components. And they will be none too happy, sometimes even suing, anyone that starts making major end items for their gun. SIG was having none of that. They invited dozens of aftermarket names in pistol parts to NH, and told them about the project. I also have it on pretty good authority they actually handed over the prints for P320 slides, barrels, and grips modules to ensure the aftermarket parts were spec\u2019d correctly.<\/p>\n\n\n\n

\"SIG
Reptile C for this project, another Norsso on hand for another<\/figcaption><\/figure>\n\n\n\n

Which is absolutely insane, and brilliant at the same time. SIG effectively not only encouraged you to make your dream pistol according to your own vision, but they recruited hundreds of outside machine shops to help. There is a massive difference between measuring a few off-the-shelf guns and trying to guess the tolerance standards, and being given those tolerance standards on a silver platter. With the FCU project, all of us win.<\/p>\n\n\n\n

\"SIG
Ameriglo front sight<\/figcaption><\/figure>\n\n\n\n

The FCU has some bonus features as well. A crisp 4.5 flat trigger, for starters, is slightly lighter than even the X series trigger groups. Custom FCU###### serial numbers are available for order. And an exclusive Titanium Nitride finish. SIG has available some excellent Pro series parts available as well, including a slide we absolutely loved<\/a>.<\/p>\n\n\n\n

\"SIG
Ameriglo rear sight<\/figcaption><\/figure>\n\n\n\n

But for our first build, we wanted something different. We did use SIG Factory small parts, as they are the most available at the moment. And we actually used a SIG barrel, since everything else was on backorder. Welcome to 2021 logistics. But for the rest, we swung for the fences.<\/p>\n\n\n\n

\"SIG
GoGun take down lever<\/figcaption><\/figure>\n\n\n\n

First up was the all-important slide. We looked no further than Norsso,<\/a> a company out of Las Vegas that specializes in aftermarket slides for EVERYTHING. Their catalog is so deep on the SIG P320 that we had a very difficult time deciding. We finally narrowed it down to the Reptile C<\/a> for this project and the Vector for a near-future one. Norsso makes seriously cool stuff, and you leave their website wanting one of everything. True to reputation, the Norsso slide was dimensionally perfect and went together as it rolled off the assembly line in New Hampshire.<\/p>\n\n\n\n

\"SIG
Gas Pedal installed<\/figcaption><\/figure>\n\n\n\n

Next, we picked up an X-carry sized grip module from SIG. That is my favorite size, and when we started the parts collection, true aftermarket was impossible to find. But to spice it up a bit, we turned to our buddies over at <\/a>MCM Firearms<\/a> for a custom cerakote job. We picked Multicam because we all believe I won\u2019t drop this gun in the woods and lose it all time. The Multicam job came out perfect and adds a very distinct look to this already sharp pistol. The Norsso slide looks even more magnificent with a coat of custom gun paint.<\/p>\n\n\n\n

\"SIG
Tested with Hornady XTP<\/figcaption><\/figure>\n\n\n\n

For sights, we were hard-pressed. The SIG factory night sights are great, easily my 3rd or 4th favorite option of all-night sights. But we did want to step out a bit, so Ameriglo was the weapon of choice. Ameriglo makes fantastic night sights and a wide variety of them. We chose the $80 protector series, with a tritium front and black rear. The tritium front is ringed by high visibility paint, making this Ameriglo a great choice day or night.<\/p>\n\n\n\n

Last but certainly not least was a <\/a>Go Gun Gaspedal takedown<\/a> lever. This is a simple-looking device that is worth its weight in gold. Or 9mm, roughly the same price right now. The Gas Pedal is so cool that SIG sells it in their own online store, though you can get it from Go Gun direct as well. The shape of the Gas Pedal for the P320 acts as a shelf for your nondominant thumb, and lets you get some very real leverage against the forces of recoil. This is basically a tactical version of their famous competition OPP Grip, tactical in this case meaning nonobtrusive and you don\u2019t need a special holster. (It fits my Safariland and Red Ballon with no modifications.) The Gas pedal is a stunning addition to any gun, and the SIG geometry lets you install it in place of the take-down pin. How good is it exactly? I can\u2019t say it any better than they do.<\/p>\n\n\n\n

\u201cNot convinced?<\/strong><\/em> Opposable Grip took Clean Sweep in 2015 National Championship, winning High overall, Men’s, Ladies, Senior and Junior. Winning don’t lie. Still not Convinced? How about REPEAT championships 2015, 2016 by Chris Tilley with Gas Pedal\u00ae brand. How about the fact that in the last 6 years of National Championships, the lions share of top five finishers all used opposable grip and 7 of 8 last champions used the opposable grip.”<\/p>\n\n\n\n

STILL NOT CONVINCED? OPP Grip won every year from 2015 to 2020 US Nationals AND 2017 World Championship. \u201c ( courtesy GOGUNUSA.COM<\/strong><\/em>)<\/p>\n\n\n\n

The FCU is an absolute winner, and a joy to build. Build is a strong word. Assemble the gun of your dreams. With an FCU, the sky is the limit, and options grow every day. Grab one and start looking up aftermarket parts, this is a purchase you are never going to regret.<\/p>\n\n\n\n

***Buy and Sell on GunsAmerica!<\/a>***<\/h2>\n","protected":false},"excerpt":{"rendered":"

The FCU\u2019s have been flowing for some time now, I know. But I wanted my first build to be something magical, and that has taken time to source parts for. Finally, everything came together this week. I, for one, think it was worth the wait.<\/p>\n","protected":false},"author":36,"featured_media":153653,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_specdata_upc":"","_specdata_placement":"","footnotes":""},"categories":[226,72],"tags":[2015,132,102,2677,614,58],"featured":[],"hunt365":[],"class_list":{"0":"post-153642","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-clay-martin","8":"category-columns-gunsmithing","9":"tag-build-a-gun","10":"tag-buzz","11":"tag-feature-articles","12":"tag-gun-parts","13":"tag-gunsmithing","14":"tag-sig-sauer"},"yoast_head":"\nSIG FCU Build Take 1<\/title>\n<meta name=\"description\" content=\"SIG FCU Build Take 1 - Clay Martin\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/gunsamerica.com\/digest\/sig-fcu-build-take-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SIG FCU Build Take 1\" \/>\n<meta property=\"og:description\" content=\"The FCU\u2019s have been flowing for some time now, I know. 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A multi-service, multi-decade sniper, he\u2019s also a seasoned 3-Gun competitor and a Master-ranked shooter in USPSA Production. When he\u2019s not writing about firearms and tactics, Clay is the author of the novel Last Son of The War God, a gritty story about dispensing justice the hard way. Follow him on Twitter @offthe_res or visit his website at Off-The-Reservation.com. 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Experience:\u2013 U.S. Marine Corps Infantry, Scout\/Sniper, and Recon Marine\u2013 U.S. Army Green Beret, 3rd Special Forces Group (ODA Comms SGT, Intel SGT, SFAUC Instructor)\u2013 Competitive Shooter \u2013 Master-ranked in USPSA Production, experienced 3-Gun competitor\u2013 Tactical Instructor \u2013 Extensive background in teaching carbine, pistol, CQB, and survival skills\u2013 Author \u2013 Fiction and non-fiction works on warfare, survival, and American resilience\u2013 2A Advocate \u2013 Defender of the Constitution and vocal proponent of gun rights\u2013 Outdoorsman \u2013 Idaho-based hunter, adventurer, and father of feral children and dogs","sameAs":["http:\/\/Off-The-Reservation.com","https:\/\/x.com\/https:\/\/x.com\/wayofftheres"],"gender":"Male","url":"https:\/\/gunsamerica.com\/digest\/author\/clay-martin\/"}]}},"featured_image_src":"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2021\/11\/IMG_1723-113x150.jpeg","_links":{"self":[{"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/posts\/153642","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/users\/36"}],"replies":[{"embeddable":true,"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/comments?post=153642"}],"version-history":[{"count":7,"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/posts\/153642\/revisions"}],"predecessor-version":[{"id":188343,"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/posts\/153642\/revisions\/188343"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/media\/153653"}],"wp:attachment":[{"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/media?parent=153642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/categories?post=153642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/tags?post=153642"},{"taxonomy":"featured","embeddable":true,"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/featured?post=153642"},{"taxonomy":"hunt365","embeddable":true,"href":"https:\/\/gunsamerica.com\/digest\/wp-json\/wp\/v2\/hunt365?post=153642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}