The scientists and engineers have been hard at work in the workshop and laboratory creating a billet AR-15 80% lower receiver that is out of this world. The end result of this brain trust is a brand simply known as Mercury Precision. Mercury Precision 80% lowers are machined from 7075 T6 Billet Aluminum, the end result being a very high end product. The goal with Mercury Precision was to create a high end product that does not require a space travel budget to afford.
This Mercury Precision 'Carme' Billet AR-15 80% Lower Receiver has full mil-spec part compatibility ensures maximum customization. This lower can withstand the harshest punishment from any situation using ultra-tough design, precision machined from aircraft-grade billet aluminum for superior strength. This lower receiver has a heavy-duty, integral trigger guard. This lower also has a unique, breakthrough design for easy bolt catch installation with a regular punch eliminates need for an expensive special tool. This raw 80% lower receiver can be painted or dipped, allowing for total customization of your lower.
80% Lowers can be made in many different materials that each have their benefits in ease of manufacturing and overall finish when complete.
Particularly 7075-T6 Billet Aluminum is a near-identical alloy used most commonly in modern AR-15 lower receivers. The Suffix "-T6" is an indicator of how the aluminum alloy was heat treated & tempered to give it improved strength and corrosion resistance, before bluing or finishing the lower with a cerakote or anodizing.
Many 80% AR-15 Receivers will be made from Forged Aluminum 7075-T6, 6061-T6, and Composite Polymers.
The lower receiver of an AR-15 is essentially the backbone of the weapon everything else is built off of, it is what makes an AR-15 a firearm. An 80% lower receiver is exactly what it says, it is a lower receiver that is 80% complete. By it being 80% complete it is considered a normal part and not a serialized firearm, so it is legal to purchase without the need of going through a background check or a local gun dealer.
Product info: The Mercury Precision 'Carme' 80% Lower is a commercial-spec lower with unique cuts and details CNC machined in. Featuring pre-engraved selector settings added in for ease of manufacturing and customization. Making the installation and completion process quick and easy. Mag well will best work with name brand Magazines like Magpul.
Brand: Mercury Precision
Model: Carme AR-15 80% Lower
Material: 6061-T6 Billet Aluminum
Finish: This 80% Lower comes in an unfinished state and must be completed by the end-user. NOTE: This 80% does not need to be finished (ex: Cerakote, Anodizing) for it to be fully functional.
Design: The Carne 80% Lower by Mercury Precision is an 80% Lower designed with flatter cut angles for a unique commercial appearance.
About the Brand: Mercury Precision is dedicated to making affordable and easy to manufacture 80% Lower kits with the highest quality 7075-T6 Billet Aluminum.
Mercury Precision Is ensuring easy access, affordable, & reliable 80% kits so that your right to bear arms shall not be infringed.
Integrated Trigger Guard: The Mercury Precision Carne 80% AR-15 Lower comes with an integrated trigger guard into its design for a uniform finish in your build.
Jigs and Bits: This Carne 80% Lower does not come with a Jig and the Bits needed to complete the build. Jigs can be found HERE
Made In The USA
Precision CNC Machined
Safety Selector Engravings
Integrated Trigger Guard
Raw Finish Allows Total Customization of Your Lower Receiver
Brand: Mercury Precision
Model: Carme' Billet AR-15 80% Aluminum Lower Receiver
Material: 7075 T6 Forged Aluminum
Jig Included: No
Bits Included: No
Integrated Trigger Guard: Yes
Magazine Platform Specific: General
Caliber Specific: General AR-15
Restricted States: Yes
Disclaimer: Rear Lug Pocket for rear takedown pin may or may not be milled out on this 80% Lower Receiver.
17" M-Lok Handguard
One of the most critical components of any AR-15 custom build is the handguard. In recent years freefloat handguards have increased in popularity. The freefloat handguard covers the barrel and is attached to the upper receiver via a barrel nut. The handguard serves many functions in an AR-15 build kit such as protecting the shooter's hand from being burned by the barrel, offering the shooter something to grip to help steady the weapon, can function as the attachment point for sights/optic, can have additional accessories attached, and adds to the aesthetic appeal of the build.
It is recommended that the handguard completely cover the gas system of the AR-15 so please consider your gas system length when shopping for a handguard. If you wish to buy a pre-designed upper build kit equipped with a handguard please visit our AR-15 & LR-308 Upper Build Kits page.
About this Handguard: This Lakota Ops Spitfire AR-15 Freefloat Handguard is 17" in length and boasts an M-Lok rail mounting system.
Mounting System: This handguard utilizes the M-Lok mounting system for easy and solid mounting of different accessories & grips on multiple different positions of the handguard.
Type of Top Rail: This Spitfire Handguard is CNC machined with a Picatinny rail across the top of the entire handguard.
Finish: To maintain corrosion resistance the Lakota Ops Spitfire handguard is treated with a Type 3 hardcoat anodizing.
Profile: The Spitfire freefloat handguard is made with a slim profile. This is a great design for shooters with small hands and creates a unique look for the entire AR-15 build.
QD: This Lakota Ops Handguard has 2 QD mounts CNC machined into the handguard for quick and easy sling attachment/detachment.
Includes: Mounting System, Handguard, Barrel Nut.
Brand: Lakota Ops
Model: AR-15 17" "Spitfire" M-Lok Handguard
QD Mount: Yes
Number of QD Mounts: 2
Style: Free Float
Accessory Attachment: M-Lok
Material: 6061-T6 Aluminum
Anti Rotation Tabs: No
Barrel Nut Included: Yes
Barrel Nut Weight: 3.6 Ounces
Cutout Length (from the longest point): 0.625 Inches
Inside Diameter (ID): 1.375 Inches
Front Outside Diameter (OD): 1.605 Inches
ID + Top Gas Tube Channel: 1.735 Inches
Gas Tube Channel Width: 0.475 Inches
Quick Detach Mounts: 2 Locking QD Mount Points
Gas Block Compatibility: Low profile & adjustable low-profile gas blocks
Barrel Nut Wrench Size: 1 1/4 inch (Purchase Crowfoot Wrench)
Please note: If the listing says "In-Stock" it means we have the item in stock. Please check this LINK to view our most up to date shipping status.