Hi Dennis
Had zero problems with mine...It would eat anything I fed it.
I let a friend of mine shoot it and he said he had to have it, So I sold it to him..
What I really liked was the way they made the lower...A double stack but not FAT...If almost felt like a single stack..
Good luck with yours and don't let any friends shoot it. 
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NRA-LIFE,COTEP, USPSA,STEEL CHALLENGE,SASS,GSSF, ICORE
GLOCK Certified Armorer
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