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sga
In mathematics, the Séminaire de Géométrie Algébrique du Bois Marie (SGA) was an influential seminar run by Alexander Grothendieck. It was a unique phenomenon of research and publication outside of the main mathematical journals that ran from 1960 to 1969 at the IHÉS near Paris. (The name came from the small wood on the estate in Bures-sur-Yvette where the IHÉS was located from 1962.) The seminar notes were eventually published in twelve volumes, all except one in the Springer Lecture Notes in Mathematics series.
I'm looking for this: SGA® Stock – Mossberg® 500/590/590A1
I have a handful of Mossberg 500 accessories for sale or trade here: For Sale: Mossberg 500 Furniture and Accessories
1) magpul moe mid length m-lok handguard in black. Used but good condition $15
2) magpul moe mid length m-lok handguard in FDE. New in box $20
3) magpul sga stock mossberg 500/590/590A1 in fde. Sold as a set with magpul 590/590A1 m-lok forend. Installed on my 590A1 but not used $90
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