16" Liteweight

Printable View

05-02-17, 17:41
gaijin

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.

http://i1043.photobucket.com/albums/...pshssc7vnn.jpg

http://i1043.photobucket.com/albums/...ps8f6fyktj.jpg

http://i1043.photobucket.com/albums/...psvas6vz0g.jpg

http://i1043.photobucket.com/albums/...psdgzkpsqt.jpg
05-04-17, 13:06
Renegade04

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

http://i100.photobucket.com/albums/m...pspsjeadrx.jpg

http://i100.photobucket.com/albums/m...ps8jllco8x.jpg

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.

http://i100.photobucket.com/albums/m...ps98llmpj2.jpg

http://i100.photobucket.com/albums/m...pshkgqhzrf.jpg

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)
05-04-17, 13:17
gaijin

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.
05-04-17, 13:43
Renegade04

Quote:

Originally Posted by gaijin

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. :cool:
05-04-17, 15:30
gaijin

Quote:

Originally Posted by Renegade04

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.:cool:

Sage advise.

Best wishes on your next build. :)
05-09-17, 07:20
JRHorne

Quote:

Originally Posted by Renegade04

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. :cool:

Amen. Funny how that happens...