Home » Shop » AR Build Kits » AR Rifle Kits » LR-308 Rifle Kits » LR-308 Side-Charging Rifle Kit – 20″ Black Nitride, Straight Fluted, SOCOM Barrel, 1:10 Twist Rate with 15″ M-LOK Handguard

LR-308 Side-Charging Rifle Kit – 20″ Black Nitride, Straight Fluted, SOCOM Barrel, 1:10 Twist Rate with 15″ M-LOK Handguard

(4 customer reviews)

$549.99

2 in stock

Ships next business day

Financing available on $300+ orders

Specifications

Attributes Value
Weight 8.13 lbs
Dimensions 36 × 6 × 6 in
Barrel Size

20"

Caliber

.308 Winchester

Twist Rate

1/10

Barrel Finish

Nitride

Handguard Type

Free-float

Gas System Length

Mid-length

SKU: UASC-2145-308RMW20110SSMF-15ASR_308-LPK_M4-STOCK_308-BTA

Description

Want an LR-308 that looks as good as it performs? This side-charging LR-308 build kit comes with a pre-built upper that features a 20″ nitride and straight-fluted SOCOM barrel to offer incredible accuracy with improved ergonomics. Its custom bolt features an integrated charging handle.

Also included is a quality lower build kit with mil-spec components that make final assembly of your custom .308 AR a breeze.

What’s Included

This kit is not a firearm. It includes a barreled upper assembly, bolt carrier group, charging handle, lower parts kit, and buffer assembly. It does not include a stripped lower receiver.

LR-308 Rifle Kit Specifications

This kit’s barreled upper is assembled before shipment. 

Barrel

  • Chamber: .308 Winchester
  • Contour: SOCOM
  • Length: 20”
  • Twist Rate: 1:10
  • Gas System: Rifle-length
  • Gas Port Barrel Dia: 0.076”
  • Muzzle Threads: 5/8×24
  • Material: 416R Stainless Steel
  • Finish: Stainless Steel with Black Nitride
  • Process: Button Rifled
  • Lining: Stainless
  • Muzzle: A2-style “birdcage”

Handguard

  • Attachment System: 15″ M-LOK
  • Finish: Type III Hardcoat Anodized (Mil-Spec)
  • Top Rail: M1913 Picatinny
  • Material: Billet 6061-T6 Aluminum
  • Attachment: Barrel Nut 

Upper Receiver

  • Profile: LR-308 Flattop
  • Material: Forged 7075-T6 Aluminum
  • Finish: Type III Hardcoat Anodized (Mil-Spec)

Bolt Carrier Group

  • Profile: M16/Full-Auto
  • Steel: 9310 Tool, HPT/MPI-tested
  • Exterior: Black Nitride
  • Interior: Parkerized
  • Gas Key: Staked, Chrome-lined
  • Charging Handle: Included

Lower Receiver Parts

  • Buffer System: Mil-spec, .308 “Shorty” Buffer
  • Buttstock: Mil-spec, M4-type
  • Parts Kit: Mil-spec, single-stage

Stripped lower receiver sold separately.

Additional information

Weight 8.13 lbs
Dimensions 36 × 6 × 6 in
Barrel Size

20"

Caliber

.308 Winchester

Twist Rate

1/10

Barrel Finish

Nitride

Handguard Type

Free-float

Gas System Length

Mid-length

4 reviews for LR-308 Side-Charging Rifle Kit – 20″ Black Nitride, Straight Fluted, SOCOM Barrel, 1:10 Twist Rate with 15″ M-LOK Handguard

  1. John Michalak –

    AR kits 308 side charger

    US

    Shipping was fast. Well packaged. As described. Tight and smooth. Trigger is better than I expected.

  2. David Endom –

    Hit and a Miss

    US

    The staff at 80 Lower have been very easy to deal with. Especially because the product shipped was incorrect. However they quickly resolved everything, and did a fantastic job. Might not have turned out the way I was hoping. But they were Johnny on the Spot in fixing the problem. Reputable company to do business with.

  3. Steven Hunter –

    Satisfied Again!

    US

    This was my 1st .308 build. I’ve built a few .223/.556’s and they are quite similar. Everything fit perfectly on my Poly 80 .308 lower. Very happy with everything. Can’t wait to shoot it! As promised, it was shipped out the next day and I received in within 6 days (unfortunately I live in CA – not much longer though).

    Image #1 from Steven Hunter
    Image #2 from Steven Hunter
  4. William O. –

    This all fits together so well

    US

    Loved the packaging, parts condition was outstanding. Only think I haven’t figured out yet is the roll-pin and threaded blind screw for the trigger guard. I’m going to get a friend to help me with that. Otherwise, it’s a slam dunk.

    Image #1 from William O.
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