BA AR-15 Standard Lower Receiver with Geissele (SD-3G(R)) Trigger
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$249.99
MSRP
$249.99
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Updated
Dec 17, 2025
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Specifications
MPN
BAPP100049
Description
The Ballistic Advantage AR15 Lower Receiver is the perfect base for your next build. This high quality, mil-spec lower receiver is machined from 7075-T6 forged aluminum with a hard-coat anodized finish. It features a nylon tipped upper tension screw, ensuring a tight fit with any standard AR15 upper receiver, and a flared magwell for easier insertion of magazines, and the rear takedown pin detent hole is threaded for a 4-40 set screw.SpecificationsMaterial: Machined from 7075-T6 forged aluminumFinish: Matte black hard-coat anodized mil-spec 8625 Type 3 Class 2Markings: Cal MultiCompatibility: Works with standard AR15 components and magazinesWeight: 8.35oz The Geissele Super Dynamic 3 Gun (SD-3G) Trigger is based on the S3G Trigger. Like the S3G, the SD-3G has a shortened pull length and a lightning-quick reset to give it a unique, hybrid trigger pull that is a cross between a traditional two-stage and single-stage trigger while still retaining the safety and robustness of a two-stage combat trigger. The SD-3G's flat trigger bow further enhances the trigger's performance by reducing the perceived pull weight and improving the trigger's tactile feedback to the operator making it ideally suited for 3 Gun competition shooting.Note: The SD3G trigger has a very short, light pull and reset. We do not recommend it for duty use, bench rest, accuracy work or shooting small groups. It is designed for close course competition use where rapid target engagement with quick follow up shots are required. * COLT 901 RIFLE USERS PLEASE SEE ARMORS TOOLS FOR PINS (PART# 02-269) THAT WORK WITH THE WIDER RECEIVERFeatures:Type: Single Stage1st Stage Weight: 4.0lbs2nd Stage Weight: N/ATotal Pull Weight: 4.5lbsAdjustable: NoSize: Mil-SpecTrigger Bow Type: FlatWeapon Platform: AR15/AR10 Q. What happens when I purchase a Lower from Ballistic Advantage? A. When you purchase a lower receiver, that lower must be shipped to your local FFL dealer and cannot be shipped directly to your home. At checkout, you will need to provide your FFL information (dealer company name, phone number, zip code). We recommend contacting your dealer to have them email a copy of their license to [email protected] along with your Order Number immediately after the order is submitted for processing.Once the order has been placed, designated BA employees will go through a process of verifying the acquired FFL info. Once we've verified the info, we match up serial numbers to orders, go through a paperwork process, and ship your item out to the FFL dealer address. Once the package has been shipped and delivered to your FFL, it is their responsibility to contact you informing you that your lower is available for pickup.The FFL must be received within 2 weeks or the order will be canceled.
