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Seasonal Promotion: 15 Ways to Upgrade with Stern Defense! Save on Special Selection of Stern Defense Products — 14 products / 14 models

Step up your build with Stern Defense and save big while this deal lasts! We have discounts on magazine conversion adapters that allow you to shoot 40 S&W, .45 ACP, or 9mm ammo with a Mil-Spec AR-15 lower to spice up training sessions and save on ammo costs. Shop deals on complete AR-9 uppers to create a powerful Pistol Caliber Carbine (PCC) with ease and add a flared magwell for faster reloads.image

Saturday, June 13 12:00 AM – Monday, June 22 12:00 AM CDT -

14 Products in Stern Defense Sale: Conversion Kits, Uppers & More

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Image of Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter (83) List: $179.99 (Save $12.60) $167.39 Best Rated
Image of Stern Defense AR-15 16.1 inch Assembled 9mm Upper Receiver w/15 inch MLOK Rail Stern Defense AR-15 16.1 inch Assembled 9mm Upper Receiver w/15 inch MLOK Rail (4) List: $544.45 (Save $47.41) $497.04
Image of Stern Defense AR-15 16.1 inch Assembled .45 ACP Upper Receiver w/15 inch MLOK Rail Stern Defense AR-15 16.1 inch Assembled .45 ACP Upper Receiver w/15 inch MLOK Rail List: $603.11 (Save 11%) $533.80
Image of Stern Defense SD 16.1in MOD4 MLOK .40SW Upper Receiver Assembly Stern Defense SD 16.1in MOD4 MLOK .40SW Upper Receiver Assembly List: $614.12 (Save 12%) $540.00
Image of Stern Defense MAG-ADB92 AR-15 Beretta 92 9mm Magazine Conversion Adapter Stern Defense MAG-ADB92 AR-15 Beretta 92 9mm Magazine Conversion Adapter (10) List: $186.99 (Save $13.09) $173.90 Best Rated
Image of Stern Defense MAG-ADMP9&40/P320 AR-15 M&P 9mm/.40 Magazine Conversion Adapter Stern Defense MAG-ADMP9&40/P320 AR-15 M&P 9mm/.40 Magazine Conversion Adapter (16) List: $186.99 (Save $9.35) $177.64
Image of Stern Defense MAG-ADMP45 AR-15 M&P .45 ACP Magazine Conversion Adapter 1 of 2 models Stern Defense MAG-ADMP45 AR-15 M&P .45 ACP Magazine Conversion Adapter (12) List: $186.99 (Save $13.09) $173.90 Best Rated
Image of Stern Defense AR-15 6 inch Assembled 9mm Upper Receiver w/ 8 inch MLOK Rail Stern Defense AR-15 6 inch Assembled 9mm Upper Receiver w/ 8 inch MLOK Rail (5) List: $470.45 (Save $42.23) $428.22
Image of Stern Defense SD AR15 Assembled Upper Receiver Stern Defense SD AR15 Assembled Upper Receiver (2) List: $119.99 (Save 15%) $102.29
Image of Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver Stern Defense SD Mod4 M-Lok 9mm Complete Upper Receiver (5) List: $429.27 (Save $39.35) $389.92 Best Rated
Image of Stern Defense MAG-AD FLARE Magazine Well Adapter Stern Defense MAG-AD FLARE Magazine Well Adapter (1) List: $73.00 (Save $3.65) $69.35
Image of Stern Defense SD 6in MOD5 MLOK .45ACP Upper Receiver Assembly Stern Defense SD 6in MOD5 MLOK .45ACP Upper Receiver Assembly List: $570.12 (Save $47.62) $522.50
Image of Stern Defense SD 8.5in MOD5 MLOK .40SW Upper Receiver Assembly Stern Defense SD 8.5in MOD5 MLOK .40SW Upper Receiver Assembly List: $555.12 (Save $46.87) $508.25
Image of Stern Defense AR-15 10 inch Assembled Upper Receiver, 8.5 in 9mm Barrel w/MLOK Rail Stern Defense AR-15 10 inch Assembled Upper Receiver, 8.5 in 9mm Barrel w/MLOK Rail (5) List: $486.45 (Save $33.82) $452.63 Best Rated
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