--- title: "EAA MC312 Black Synthetic 12 Gauge Shotgun" description: "EAA Girsan MC312 semi-auto shotgun in 12 gauge with a 28\" barrel, black synthetic stock and forend, vent rib, rotating bolt, and screw chokes." canonical_url: "https://www.kygunco.com/product/eaa-390145-mc312-12-gauge-28-black-shotgun" meta: author: KYGUNCO "og:description": "EAA Girsan MC312 semi-auto shotgun in 12 gauge with a 28\" barrel, black synthetic stock and forend, vent rib, rotating bolt, and screw chokes." "og:image": "https://cdn.kygunco.com/assets/products/146307/thumbnail.jpg?v=1710509163" "og:image:height": "500" "og:image:width": "500" "og:title": "EAA MC312 Black Synthetic 12 Gauge Shotgun" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Guns](https://www.kygunco.com/category/shooting/guns) / [Shotguns](https://www.kygunco.com/category/shooting/guns/shotguns) / [Semi-Auto](https://www.kygunco.com/category/shooting/guns/shotguns/semi-auto) / EAA-390145 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/146307/main.jpg?v=1710509163) For illustration purposes only, this image may not be an exact representation of the product. # EAA Girsan MC312 12 Gauge 3" 28" 3rd Semi-Auto Shotgun - Black Synthetic The EAA Girsan MC312 is a 12 gauge inertia-operated semi-auto shotgun with a 28" barrel, black synthetic stock and forend, vent rib, high-visibility front sight, rotating bolt, screw choke tubes, rubber butt pad, and sling swivel nipple. It accommodates 2 3/4", 3", and 3 1/2" shells. 5.0 ** ** ** ** ** [2 reviews](#reviews) $466.90 ** 5 interest-free payments of **$93.38** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) Pay over time with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** Ships To FFL Dealer Fulfilled by a partner warehouse. ** Partner Fulfilled ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Item # 146307 Style EAA-390145 UPC 741566903472 Condition New Manufacturer [EAA](https://www.kygunco.com/brand/eaa) Model Girsan MC312 Hand Right Hand Finish Black Round Capacity 3 Caliber 12 Gauge Action Semi-Auto Barrel Length 28 in This shotgun is tough and versatile! Out of the box the MC312 runs 12GA 23/4", 3" and 3.5". We even tested target loads, 12GA 23/4" and hot 3.5", mixed in the same mag tube and the shotgun still functioned. This is a very difficult task for most shotguns as it requires the bolt to cycle back far enough to load the 12GA 3.5", but using only the energy from a target load 12GA 23/4". EAA really abused this gun in testing. They ran 700 rounds continuous leaving no time to cool, mixed and matched ammo in a single mag tube, and put it through some of the most grueling tests they could come up with. EAA ran the first 5000 rounds with zero cleaning, then ran a 10,000 round endurance test without replacing any parts. For the last test, they disassembled 5 shotguns, placed the parts in a box, mixed the parts up and reassembled the guns with a random selection. The MC312 fired with no adjustment needed. The GIRSAN MC312 even comes with a limited lifetime warranty. No one puts a lifetime warranty on a shotgun, except Girsan and EAA Corp. That's how confident they are in the new MC312 Shotgun! **FEATURES** - Inertia S/A Shotgun - Polymer Stock and Forend - Screw Choke Tubes - Vent Rib - High Visible Front Sight - Shell Release - Rubber Butt Pad - Sling Swivel Nipple - Rotating Bolt **SPECIFICATIONS** - UPC: 741566903472 - SKU: 390145 - Caliber: 12 Gauge - Barrel Length: 28" - Choke: Screw - Overall Length: 50" - Length of Pull: 14.25" - Width: 1.5" - Type: Inertia Shotgun ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 5.0 ** ** ** ** ** 2 reviews ** ** ** ** ** 2 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Reviews ** joseph freeman CREEDMOOR, NC This gun shoots very well. It jammed a few times with low power shells during break in period but is perfect now. I dont plan on shooting low brass anyway so it would not have mattered to me either way. Very happy and would buy again. 3/6/2021 ** ** ** ** ** ** nathanael bodie DIVIDE, CO fast Shipping, 2 phone calls to KYGunCO and everyone was very helpful.Better quality than expected Shotgun arrived, and even my FFL dealer commented on the quality for the price.I wouldn't hesitate to purchase from KYGunCO again. 10/3/2020 ** ** ** ** ** ## Don't Forget Your Ammo ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/eaa-390145-mc312-12-gauge-28-black-shotgun#webpage","@type":"WebPage","description":"EAA Girsan MC312 semi-auto shotgun in 12 gauge with a 28\" barrel, black synthetic stock and forend, vent rib, rotating bolt, and 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