FN SCAR 17s Update

My FN SCAR 17s. The crown jewel of my gun safe. The Burris MTAC 4.5×14 scope is attached with an American Defense-Delta mount.

What’s the big deal about FN’s SCAR? I wrote an earlier post on the 17s with several reasons why I think it is worth a premium price tag. After getting to know more about this battle rifle and having more time behind it, I’m even more convinced. Read on to find out why.

A typical 3-shot, sub-MOA group at 100 yards with minimal effort from me with my FN SCAR 17s. I took about 3-seconds between shots for this group. With more concentration and effort, my SCAR is a 0.5″ rifle.

Here’s a list of upgrades I’ve made to my SCAR, and I’ve ranked them in order of impact on performance and utility. All are hyperlinked so you can easily find more information with C&L’s price.

  1. Geissele Super SCAR trigger: $325
  2. Primary Weapon Systems rail extension: $209
  3. Ergo grip: $25
  4. Parker Mountain Machine rear sling attachmentfactory direct only
  5. Magpul ladder covers: $10.99
  6. Magpul angled foregrip: $29.99
  7. Urban ERT sling with QD adaptors: factory direct only

I first learned about the Geissele trigger and PWS rail extension while watching Travis Haley’s YouTube video titled: Run a SCAR or MK16/17 Like a BOSS! It is a MUST WATCH for all SCAR owners. The Geissele trigger is simply the best SCAR trigger upgrade you can buy, period. I haven’t found a post recommending a different third-party trigger over the Geissele anywhere. The trigger basically cuts the pull weight in half from 8 lbs. to 4 lbs. and removes all creep. It’s also very easy to install.

The PWS rail extension is a great upgrade because it gives you the option of running the charging handle on your weak side. Again, the above video demonstrates why this is important. In summary, you can change mags and troubleshoot more quickly with a weak-side charging handle set-up. The extension comes with QD swivel points on both sides and lengthens your rail by 5″. On a side note…did you know that the muzzle brake on the SCAR is made by PWS? By the way, Cocked and Locked is an authorized Geissele Automatics and PWS dealer.

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FN SCAR with PWS Rail Extension installed. Note QD mount between screws on extension. Contrast with the picture of my SCAR at the top of the post showing the charging handle on the left side versus on the right side in this photo.

FN products typically run smoothly and shoot accurately, and the SCAR is no exception. Likewise, FN’s grips typically suck. I don’t like it, but it’s true. The Ergo 2 SCAR Grip is a must have accessory. It can be installed in a few minutes and makes a significant difference in comfort when shooting and carrying the SCAR due to the Ergo’s grippy, but non-sticky, rubber versus the OEM hard plastic. Also, the factory grip is hollow with no base while the Ergo model has a small storage compartment with an access panel on the bottom where you can stash a cloth for cleaning optics and a few small tools.

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The Ergo 2 SCAR Grip.

The Parker Mountain Machine rear QD mount is another great accessory if you are going to attach a sling. One of the other misses of the SCAR’s design is the pair of aluminum “ears” for rear sling attachment. If you use an HK mount or mash-hook, the ears will start showing wear and tear almost immediately as the steel sling attachments eat into the aluminum ears. I’ve tried wrapping mash hooks with mil-spec para-cord, but that quickly wears through. The PMM QD mount is also aluminum, but since it is a QD mount, it will not wear. Note that a similar ear is located at the front of the factory rail, and it has the same issues. However, the PWS Rail Extension takes care of that with its integral QD mount.

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QD Mount, mash hook, and HK hook. Steel hooks will eventually destroy the aluminum ears on the SCAR. QD mounts are the way to go.

Why do people buy rifles with quad rails only to cover them up with rubber? To protect the unused portion of the rails. Sharp aluminum corners are easily damaged, and if you want to preserve the rails on your SCAR, there are a myriad of options out there. Personally, I like the Magpul Ladder Rail Panels. You maintain the look of a picatinny rail while protecting it with minimal weight and adding a nice grip surface that protects your fingers from sharp edges.

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Magpul Ladder Rail Panel.

I’ve never been a fan of forward pistol grips on military rifles. While useful in some situations, I think they get in the way and are easily broken, even when made of high-strength polymer. Magpul’s Angled Foregrip is a nice compromise because it gives you increased grip on your rifle, is less likely to break compared to a pistol grip, and it won’t get caught up in your sling like a pistol grip can.

Screen Shot 2015-05-20 at 10.43.09 PMMagpul’s Angeld Foregrip.

With hundreds of slings to choose from, you can get very personal with your carry apparatus. I was introduced to the Urban-ERT sling by some shooting buddies and prefer it for a number reasons. First, it is much wider than other slings which distributes the SCAR’s weight, and don’t kid yourself, the 17s isn’t light. The sling’s width and elastic shock-absorber made a big difference for me while deer hunting last year. The fat part of the Urban-ERT is equivalent to a car’s seat-belt. It’s also very modular and comes in multiple colors and patterns. You have every attachment choice possible as an option, and it can be configured in 2-point or single-point modes. I really like the emergency break-away, quick release, and smooth operation of the cinch strap for length adjustment. I do not recommend the Urban Sentry Sling Kit made for the SCAR because it uses mash hooks, and we’ve already discussed why that’s a bad idea. Instead, buy QD mounts by selecting Jumbo Buttons for the front and rear attachments of the Urban Sentry Two-Point/One-Point Hybrid Sling.

If you want to be able to quickly transition from 2-point to single-point configurations, I suggest you put an HK hook on the front and add the optional Magpul RSA sling attachment to your picatinny rail. I prefer the 2-point configuration and don’t switch back and forth.

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Urban-Sentry sling shown with mash hooks. Opt for the Jumbo Button, QD mounts instead for 2-point carry.

If you don’t already have a SCAR and want one, Cocked and Locked is your place to go! Our everyday price on the FN SCAR 17s in black or FDE is $2,749. If you prefer the SCAR 16s, the price for either color is $2,499.