"grab it for" is correct and usable in written English.
You can use it as an instruction to someone to take something for themselves. For example, "Grab it for yourself before someone else does!".
Every time they slap her down it is worse than the time before, and she sinks farther and deeper, the moment of relief passing before she can grab it, for the next wave is already gathering its power to hit her.
"No one's going to grab it for you".
But they waited to grab it for 18 months.
Apartment seekers can grab it for $3.995 million.
She wants "to grab" it for the Boston publisher Houghton Mifflin, and she succeeds.
"And if I get the next chance, I will grab it for sure".
When Novartis recently got rid of a drug that failed to tackle Alzheimer's, for example, this group grabbed it for its potential as an obesity treatment.
He grabbed it for safekeeping, and I swam for real.
Neal, dutiful son, marched into the house and grabbed it for her.
When ITV dumped the 10pm slot for news, Greg instantly grabbed it for the BBC.
When they saw the house in Iselin, they grabbed it for the asking price -- $179,000.
