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Thread: 16" Liteweight

  1. #1
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    16" Liteweight

    Put together a light(er) weight gun.
    With advancing "geezerhood", two blown rotators and arthritic hands, I was hoping for an end result that would be fully a pound lighter than most of my other AR's.
    I had most of the parts lying around unused.
    I used an older RRA's lower that I changed out the commercial buffer tube for a milspec. The ability to use a greater variety of stocks was my reasoning.
    Running a pretty standard Sprinco Blue and H2 buffer.
    I'd had good luck with BA Hanson profile barrels in a 14.5" build and went with their 16".
    Installed a Precision Armament M4-72 muzzle brake- as this was to be dedicated range/competition gun. They have proven very effective- shooting really flat, but the concussion is brutal. A poor choice for a SD gun.
    A Toolcraft BCG was installed.
    Used a 15" KMR-A.
    I used a Trijicon MRO that I had with an ADM mount. BUIS are MI.
    Gun has a 3# Timney- it's a range gun.

    Overall I deem it a success.
    It is about 18 oz. lighter than my lightest 16" gun that has a LPV.
    Accuracy was "good enough". Since it's a "range gun" and our range has a 100 yd. berm only- I used Wolf Gold.
    I would likely never shoot this beyond 100 yds. and the intended purpose was for a 50 yds. and in "hoser".
    I did throw a 4.5-14 Leupold on it to see what it would do with"real ammo".
    The best 5 shot groups were; IMI 69 gr. Razor Core in at .75" for and Speer 64 gr. GD was .90" for 5 rounds.









    Last edited by gaijin; 05-03-17 at 05:51.

  2. #2
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    Nice build. Last year, I decided to build a lightweight AR as well. This one came in at 5lbs. 14.7ozs (w/o magazine).





    Here are the specs on it.

    Upper Receiver:
    AERO PRECISION Stripped Upper Receiver
    Strike Industries Lightweight Forward Assist - Blk
    Strike Industries Enhanced Ultimate Dust Cover - Standard/Blk
    Strike Industries Charging Handle w/ Extended Latch - Blk
    LaRue Tactical 16" 5.56 PredatAR barrel (mid-length) w/ M4 Feedramps
    LaRue Tactical Low Profile Gas Block (.625") and Gas Tube
    SLR Rifleworks Synergy BCF 5.56 Mod 1
    SLR Rifleworks Helix 11.7" MLOK Handguard (HELIX-11.7ML)
    SLR Rifleworks M-LOK Handstop Mod 2 (HS-ML2)
    Battle Arms Development M16 Bolt Carrier Group - Black Nitride Finish (BAD-BCG-M16)
    MAGPUL MBUS PRO Front & Rear sights (Blk)
    HOLOSUN Paralow HS403A Red Dot Sight - 2 MOA

    Lower Receiver:
    McKay Enterprises A2 Lower Receiver (stripped)
    Battle Arms Development BAD-EMMR Enhanced MODULAR Magazine Release - LG/Blk
    Battle Arms Development Sabretube (Mid)/QD Endplate/B.A.D.-BS Stock Combo
    Battle Arms Development Carbine buffer and Buffer Spring
    Battle Arms Development Enhanced Takedown & Pivot Pin Set
    Elftmann Tactical Ambidextrous Push-Button Speed Safety
    Rise Armament Super Sporting Single Stage Trigger (RA-140-SST)
    KNS Precision 0.154 in Black Stainless Steel Match Grade Trigger / Hammer Pin Set
    Forward Controls Design Augmented Bolt Catch/Release (ABC/R-F-BLK)
    TYRANT DESIGNS CNC Mod Grip (Medium Chevron Panels)
    CORE15 Trigger Guard

    I also recently did a build for my little brother (53 years old). It came in just under 6lbs. as well before he added the MAGPUL MBUS PRO sights and Trijicon MRO.





    Here are the specs on his. This is no low budget build.

    Upper receiver:
    Battle Arms Development Lightweight 7075-T6 Billet Upper Receiver (BAD556-LW)
    LaRue Tactical 16" 5.56 PredatAR barrel (mid-length) w/ Standard Rifle Feedramps
    LaRue Tactical Low Profile Gas Block (.625") and Gas Tube
    SLR Rifleworks Helix Handguard AR15 Keymod 13.7" (HELIX-13.7KM)
    SLR Rifleworks Keymod Handstop Mod 1
    SLR Rifleworks Synergy BCF 5.56 Mod 1
    LANTAC Enhanced Bolt Carrier Group
    Geissele Automatics Super Charging Handle - Black (05-313B)
    Strike Industries AR-15 Enhanced Ultimate Dust Cover - Capsule/Black (SI-UDC-CAPSULE-BLK)

    Lower Assembly:
    Battle Arms Development Lightweight 7075-T6 Billet Lower Receiver (BAD556-LW)
    Battle Arms Development Enhanced Modular Magazine - Medium/Black (BAD-EMMR-M-BLK)
    Battle Arms Development Ambi Safety Selector (BAD-ASS-LW)
    Battle Arms Development Ion Bond Black Titanium Enhanced Takedown & Pivot Pin Set (BAD-EPS-Ti-BLK)
    Battle Arms Development Enhanced Bolt Catch/Release (BAD-EBC-BLK)
    Norgon Ambi-Catch™ Magazine Release
    BCM A5 Intermediate Buffer System Assembly
    MFT Battlelink Minimalist Stock (Blk)
    Elftmann Tactical 3 Gun Single Stage Curved Bow Modular Trigger (ELF-3-GUN-C)
    KNS Precision 0.154 in Black Stainless Steel Match Grade Trigger / Hammer Pin Set (REPLTH-154-BLK)
    Last edited by Renegade04; 05-05-17 at 15:00.
    "A Bad Day At The Range Is Better Than A Great Day Working"

    USMC Force Recon 1978-1984
    US Air Force Res. 1995-2004 (Air Transportation)
    M16/AR15 shooter since 1978, gun collector and AR builder since 2004
    Oath Keeper member
    III% United Patriots member

  3. #3
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    Nice work.

    My "lightweight" was an attempt at dropping over a pound, while using a lot of the spare crap I had on hand.
    The barrel, KMR-A and a few small parts were my total out of pocket on this.
    I exclude the parts on hand, which were purchased much earlier- because I'm a gun guy.
    As such, I am allowed to justify, rationalize and minimize.

  4. #4
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    Quote Originally Posted by gaijin View Post
    Nice work.

    My "lightweight" was an attempt at dropping over a pound, while using a lot of the spare crap I had on hand.
    The barrel, KMR-A and a few small parts were my total out of pocket on this.
    I exclude the parts on hand, which were purchased much earlier- because I'm a gun guy.
    As such, I am allowed to justify, rationalize and minimize.
    I keep several small parts in a storage bin, but I try not to keep uppers, lowers, handguards, and a few other items laying around. They tend to turn into complete ARs for some reason. I usually order just what I need for a build. It was good that you had some stuff on hand that you could repurpose. I will have a dilemma soon. I will have a spare lower, upper, charging handle, and BCG that I will have to build something with. Oh what a dilemma.
    "A Bad Day At The Range Is Better Than A Great Day Working"

    USMC Force Recon 1978-1984
    US Air Force Res. 1995-2004 (Air Transportation)
    M16/AR15 shooter since 1978, gun collector and AR builder since 2004
    Oath Keeper member
    III% United Patriots member

  5. #5
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    Quote Originally Posted by Renegade04 View Post
    I keep several small parts in a storage bin, but I try not to keep uppers, lowers, handguards, and a few other items laying around. They tend to turn into complete ARs for some reason. I usually order just what I need for a build.
    Sage advise.

    Best wishes on your next build.

  6. #6
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    Quote Originally Posted by Renegade04 View Post
    I keep several small parts in a storage bin, but I try not to keep uppers, lowers, handguards, and a few other items laying around. They tend to turn into complete ARs for some reason. I usually order just what I need for a build. It was good that you had some stuff on hand that you could repurpose. I will have a dilemma soon. I will have a spare lower, upper, charging handle, and BCG that I will have to build something with. Oh what a dilemma.
    Amen. Funny how that happens...

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