Hi Jerron and welcome. No Thumb Safety on this UPC code Smith & Wesson M&P5.7 - This color configuration does not come with a Manual Safety currently. Due to popularity of the 5.7 S&W, it likely will be soon. Cheers and stay safe!

Jerron, there is no thumb safety on this model. If you want the thumb safety, it only comes on the black model - budsgunshop.com/product_info.php/products_id/152848/smith+%26+wesson+m%26p+or+threaded+barrel+safety+5.7x28+22rd+black ,
Stay safe & have a great day!

This model does not have a Manual Thumb Safety.

No it does not have a thumb safety see*****
SKU: 14078
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WIDTH 1.1 in
LENGTH 8.5 in
HEIGHT 5.25 in
WEIGHT 26.7 oz
CALIBER5.7X28MM
SIZEFULL
CAPACITY22
ACTIONINTERNAL HAMMER FIRED
BARREL LENGTH5
GRIPPOLYMER
SIGHTSWHITE DOT
OPTIC READYYES
*******SAFETYNO THUMB SAFETY
COLOR/FINISHFDE/BLACK
STATE COMPLIANCEN/A
THREADED BARRELYES
FRAMEPOLYMER
LASERNO
PERFORMANCE CENTERNO
NUMBER OF MAGAZINES2
10LB TRIGGERNO
BARREL MATERIALSTAINLESS STEEL