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5.56 AR 15 Rifle Kit - 16" Nitride Barrel, 1:7 Twist Rate with 15" M-Lok Handguard

Was: $449.99
Now: $369.99
SKU:
5561617(B)-MLOK(15)_AR15-LPK_AR15-CH_BCG-N_M4-STOCK_AR15-BTA
Availability:
Out of Stock
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Please Note: Given the current demand for this product and supply shortages, your order may ship with a black hammer and trigger or a stainless steel hammer and trigger. Both units are functionally identical.

Pick yourself up one of the staples of our catalog of AR-15 built kits. This prebuilt upper assembly comes chambered in 5.56mm NATO and, and its standard lower parts kit has been upgraded to an Anderson LPK. Enjoy a polished stainless steel trigger and hammer that feel smooth and break clean each time you squeeze off a round.

What’s Included 

This kit is not a firearm. It includes an assembled upper receiver, lower parts kit, and buffer assembly with pistol brace. 

AR 15 RIFLE KIT SPECS:

Gas System: Carbine-length
Barrel Profile: M4
Barrel Steel: Chromoly vanadium
Barrel Finish: Black nitride
Chrome Lining: No
Muzzle Thread: 1/2×28
Chamber: 5.56mm NATO
Twist Rate: 1:7
Barrel Extension: M4
Gas Block Size: .750″
Gas Block Type: Low-profile
Muzzle Device: A2 Flash hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: 15″ lightweight split M-Lok free float
Bolt Carrier Group Included: Yes
Bolt Steel: 9310 steel, magnetic particle inspected
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 24.5″

AR 15 Rifle Kit Details (Expanded):

Barrel: 16″ carbine-length with black nitride finish, chambered in 5.56mm NATO, 1:7 twist rate, .750″ low-profile gas block, 15″ free-float M-Lok split handguard, with an A2 “birdcage” flash hider.

Upper Receiver Assembly: Forged from 7075 T6 aluminum, hard-coat anodized in black for durability, features M4 feed ramps, and are made in the USA.

Bolt Carrier Group: The bolt carrier is made from 9310 steel and has a staked, chrome-lined gas key and black nitride finish. The bolt itself comes complete with an extractor spring and O-ring insert. It accepts .223 Remington, 5.56 NATO, and .300BLK calibers, and is magnetic particle inspected.

AR-15 Lower Parts Kit: includes all parts needed to complete the lower receiver including pistol grip, mil-spec safety selector, and trigger/fire control group.

Lower Assembly: comes with complete buffer tube assembly including buffer, buffer spring, six-position buffer tube, latch plate, castle nut, and butt stock based on original Colt design.

Charging Handle: standard size, made from 6061 aluminum.

Lower receiver sold separately.

Shipping Restrictions  

We cannot ship certain parts and accessories to states that prohibit the sale or ownership of such components, like California, New York, and others. Before ordering, see our shipping restrictions for a list of all prohibited states and locales. We try our best to keep our shipping restrictions current, but state laws change almost daily. It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm.  

80LowerJig.com only ships within the United States. Federal law prevents international shipments of our products.  

WARNING: Handling firearms parts and certain firearm accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov. 

WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov

Shipping Restrictions

Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.

www.80lowerjig.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.