Home / Competition Shotgun Parts & Upgrades / Stoeger / Stoeger Parts / NEW! Adapter system for Magpul SGA stock NEW! Adapter system for Magpul SGA stock 5.00 out of 5 (4 customer reviews) $49.95 Machined 6061T6 Aluminum spacer and steel thread adapter allows the use of the Magpul Mossberg 590 SGA stock on the Stoeger M3k/M3000/M3500/P3000 series 12ga shotguns. Chrome-moly internal threaded insert converts factory 10mmx1 stock bolt thread to the Magpul’s 5/16-18 SAE thread. Matte Black anodized outer spacer creates a smooth transition between the Stoeger receiver and the Magpul stock. Still allows use of the factory stock shims for cast and drop adjustment! Drop-in parts, no fitting required. STOCK NOT INCLUDED. NOTE- ONLY WORKS WITH MAGPUL MAG490-series SGA stocks intended for the Mossberg 500/590/590A1 shotguns! Does NOT fit the Remington model. 47 in stock NEW! Adapter system for Magpul SGA stock quantity Add to cart SKU: magpuladapter Category: Stoeger Parts Reviews (4) 4 reviews for NEW! Adapter system for Magpul SGA stock 5 out of 5 Luis Vazquez (verified owner) – October 13, 2019 Works great with solid fitment. The lines match up nice with the receiver and the stock. I didn’t think the SGA stock looked like anything special, but glad I tried it out. Got it to fit me perfectly thanks to this kit. 5 out of 5 Patrick Heim (verified owner) – October 16, 2019 Love this upgrade to my M3K. Very well machined with no fit / installation issues. I was amazed how easy / well the shotgun points / comes into position with the SGA stock and this adapter. No additional shimming was needed to make it fit perfectly. The SGA stock also adds a little more mass to balance the gun and I really prefer the grip angle over the factory stock. It also looks really cool 🙂 5 out of 5 Richard Rose (verified owner) – December 23, 2019 Very easy install. Nearly seamless interface between gun and stock. The Magpul stock is just a great addition to my M3K shotgun and totally changes the feel of the gun. 5 out of 5 Corey Hopkins (verified owner) – August 14, 2020 Excellent!!! Works great on M3000. easy to install. Waiting for you to have them back in stock so I can put one on my M3500. Duck season is about to start. Add a review Cancel replyYou must be logged in to post a review.