I love this car but I've put mine up for sale after reading all these threads and nobody having any answers. (SCAR Optimized Buttstock Assembly) provides more cheek rest and length of pull adjustment for shooters who want to customize their stock for different. With inspiration from the FN Mk20 buttstock for their S.O.B.A. This is exactly the kind of setup that has generated controversy around the KDG stock. Stryker Enterprises is a manufacturer of accessories for the FN Herstal SCAR platform, all made in the USA. The other potential weak point of this is the mount point to the rear receiver.
It's a free float barrel and the crack is on the fore-end forward of all the pressure points. A problem with this setup, sexy as it looks, it that I don't think the charging handle will clear the stock when folded. You can fix the crack but it will re-appear until the pressure point causing it is relieved. It will work on all variants of the Mini-14, AC-556, and the Mini-Thirty. HelixFR said: If your cracking synthetic stocks then you have something causing it to crack. In my opinion this is by far the largest flaw with the R, and nobody does any research or has any solution for us to avoid this issue. The SCAR-CQB is the proprietary stock system exclusively offered by Clyde Armory. Sure I've heard "it's just a crap shoot as to who it happens to" but that really doesn't make sense when some stock R's have this issue and high hp R's don't, engine tolerances are far within thousands of an inch so there can not be that much of a difference in each engine where some walls are thinner and some thicker.
A relatively simple way for a writer to show a character is tough, without explicitly saying it: give them. a fair few failures reported and cracked boxes, the newer ones were a lot better. To protect your 1200, you should have that crack checked out. So, paying 1200 without knowing for sure whether the guitar has a cracked neck or a finish crack is dicey to say the least. There's a lot of speculation as to what causes this but so far I have yet to read anything that really explains why our some of our cylinder walls crack and others can run 450+hp on stock internals and be absolutely fine. The Rugged Scar trope as used in popular culture. General rule of thumb - a neck/headstock crack/repair decreases the value by about 50 depending on the severity/quality of the crack/repair. I can't afford to take the gamble of "we'll your cylinders might crack and then you have to buy a new engine and pray that for some reason they don't crack again" and sleeving is even more expensive than buying a used engine!
Does anyone have a definitive answer as to what causes this? Is it boost spikes? Coolant too hot? Low grade fuel used?