Your friend must just want to have problems with his "first" gun - eh?
Should you ever get a Sigma?
Hell no.
WHY?
I must admit and confess. I owned one of the second generation, new and improved Sigma 40SW V series guns years ago. I really liked the grip and its erogonomics. SW got it right on the ergonomics.
But it experienced mutliple FTE, FTE, FTLB, FTS. Broken firing pin, messed up factory magazines, and it would not reliably feed FMJ. Forget JHP and that is after the SW certified gunsmith polished the feed ramp for me and completely "rebuilding" it per the factory.
They had five others in the shop too. From different manufacture dates.
Junk.
I used to be an investigator for Boeing in Seattle. More than 200 uniformed security officer had multiple versions of the Sigma line. And their armorers could not keep up with the repairs. Many officers could not qualify on the range due to the high level of failures. SW rebuilt and upgraded all of them twice and they still are big problems.
Is 200 plus bad Sigmas that are given light shooting duty but still jamming and failing to efect or slide not locking back or bad firing pins, enough evidence for you.
I saw them at the range "trying" to qualify with those pathetic guns. Even the range employees were laughing.
If you want the fugly gun with probably the WORST reliability reputation on the Net, tell your "friend" to buy it.
Why just not buy a used Glock, Sig, HK USP, Springfield XD, CZ, BHP, EAA Witness, and so on. Lots of great feedback on these guns.
I think your friend needs to save up his money and not make the mistake I made years ago. They gave me my money back and I bought a Glock.
If money is tight, the EAA Witness polymer line is a good value and they are good guns.