The equipment with the standard camo patern will change with the new one that ÖKK has adopt when they became obsolote or damaged enough to not the use. As I observed they are wearing their own "dedicated" camo only for training and base duties and keep wearing the standard camo for field missions. Which makes a lot of sense since they do not want drag too much attention in the field with different camo they are using.
I do not get their obsession with the different camo from the beginning. Their camo looks solid but not worth to mess the standardization within the land forces units. Although what I make as the only reasonable assumption is the camo currently used by the Army SF-ÖKK might become the new standard issue camo for the entire Land forces in the upcoming years since we know their intention to replace the current standard issue one.
It's a fact that the Sarsılmaz products are known as problematic amongst the Turkish LE units. The original reason of Turkish Police to get SIG516 rifles that they didn't like the Sarsılmaz made M4/M4A1 clones priorly they bought. Same applied for the early SAR109T model sub-machine guns, they eventually ended up ordering more MP5s from MKEK. However the latest sarsılmaz SAR 223T which is bought by the Police is the model developed with the feedbacks given by the Police to meet with their needs so I don't think they are gonna face any major problems.
Top: original, bottom: Police model
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As far as I know both Navy SF (SAT) and Air Force CSAR is testing the MKEK MPT-55 and MPT-55K as the future replacement of their Colt M4 and HK4A6A5s, these rifles are currently in good condition but getting the spare parts for these are become expensive than their domestic counterparts and troublesome regarding the current status quo we are having with the other Western countries right know.
Currently Turkish defence industry has four different AR-15 type weapon platforms including Kale KCR556, Sarsılmaz SAR223T, MKEK MPT-55 and Tisaş ZPT556. At least one of them would be adequete to change their current ones in the special mission units inventory. If its not so producers have capacity to refit them to meet SF standards like we have seen the Sarsılmaz case for the Police