My cousin bought a brad new A5 a couple of month ago and yes it seems not as a sturdy as mine for some reason, I have not read anything about this but it doesn't seem unprovable. Pretty much is literally a law of business you always look to make more money so in the efforts of rpoduct development and evolution I wouldn't be surprised if they realized many parts and components can be made of more cost effective materials without affecting real performance i.e. the new rear sight made out of plastic yeah I saw that, looks like a toy sight

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Tippy A5 • Remote Line with Quick Disconnect • OpsGear G36 Fixed Stock • RAP4 M4 Style Magazine Expansion Chamber • J&J 14" Ceramic Barrel w/ APEX • Modded M4 Style Handguard • Full Cyclone Upgrades • Super R/T • PPS In-Line Stabilizer with 32 Degrees 1200PSI Gauge • JT Flex 8 Full Coverage Mask • NcStar Aimpoint Replica Red Dot Sight • Adjustable Laser Aiming Module with remote pressure switch • Pure Energy 72/3000 tank • Lapco 45 Degrees offset rail • Polished Internals • GXG Tac vest