You wouldn't expect a Hyundai Accent to perform on par with a BMW X1, which is more than twice the price. Why would you expect a $250 revolver to display a lot of hand-fitting? In my experience with almost three dozen Charter revolvers owned over several decades, you generally get a functional revolver for the price. You might like a smoother trigger pull, or different material construction, etc... but you are not being realistic at the price it is sold at. You can pay 2-3x more, and get to roll the dice on receiving a craptastic gun from Ruger, S&W orColt - I have many times. Last one was a $900 S&W that the factory completely replaced with a new gun about a year ago.
You can use a Charter as is, and if it has a rough trigger pull, that hammer burr will smooth out eventually. Or if you like to tinker and are skilled, you could polish off any burrs. Or yours might be 100% great. Sorry to break the news to you but this is the pattern in ALL of the once impeccable US gun industry, now that money people and bean counters have decided the "gunsumer" is an ignoramus that doesn't know the difference. Sadly, they are largely correct, due to the YouTube shills they hire to push the junk they make.
Some of my Charters I have had to send back to correct for a factory defect. Just a phone call, no hassles at all. Sent me a shipping label on their dime, corrected the problem faster than any other gun manufacturer I've dealt with, and returned it no charge.
The below Charter Undercover hi-polish I purchased 4-1/2 years ago. This week I just passed 1000 rounds though it. Fired a LE-style qualification course with it, 50 rounds starting at 25 yards, under the timer:
25 Yards draw & fire 5 rds standing, 5 rds kneeling with reload in 40 seconds
15 Yards draw & fire 5 rds in 10 seconds
7 Yards draw & fire 3 rds in 4 seconds x 4
7 Yards ready fire 4 rds with reload in 10 seconds x 3
7 Yards ready fire 1 rd head box in 2 seconds x 2
7 yards draw & fire 2 rds strong hand, 1 rd weak hand in 6 seconds x 3
View attachment 1159631
Obviously the revolver is not an issue whatsoever. But haters gotta hate.
PS. All plastics are polymers. Formulations vary. I have seen many cracked polymer pistol frames (Glock, FN, Kel-Tec), but have never seen a cracked grip frame on a Charter revolver. I suppose it could happen but would be rare and probably to due to either extreme abuse or a defect in the individual thermo mould specimen.