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RTB AR15 Lightweight Carrier - Nickel Boron (carrier only)

Rating: Total Reviews: (8 reviews) Write a Review
Product Code: NiB-LW-CO
Stock Status Stock Status: Out of Stock
List Price: $189.99
MSRP: $189.99
Sale Price: Sale Price: $79.95
Savings: $110.04
$79.95
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RTB AR15 Lightweight Carrier - Nickel Boron NiB (carrier only)

Featuring our NiB coated Right To Bear Lightweight carrier, weighing in at approximately 6.8 Ounces, or 194.1 Grams for you lightweight build fanatics! Using our low mass Carrier creates less reciprocating mass moving back and forth inside the action, which reduces recoil significantly. Our lightweight carrier also allows proper cycling with less gas. When used in conjunction with an adjustable gas block & reduced power buffer spring, you can tune the gas way down, which will reduce muzzle rise and carbon build up.

The increased lubricity from the Nickel Boron process allows you to take full advantage of its lightweight profile. The slick surface combined with our lightweight carrier, creates very little resistance and allows the rifle to cycle smoother and increases reliability.

These faceted AR15 carriers can be used to build any small frame AR caliber complete BCG. Just add a caliber bolt of your choice. You can pair these carriers with the bolt completion kits below to assemble a complete BCG.

5.56 Bolt Completion Kit

7.62x39 Bolt Completion Kit

6.8 SPC Bolt Completion Kit

.458 SOCOM Bolt Completion Kit

6.5 Grendel Bolt Completion Kit


Click here for the reduced power buffer spring
Click here for the adjustable gas blocks


  • Nickel Boron Finish for superior lubricity
  • Weight: 6.8 Ounces / 194.1 Grams!
  • 8620 Tool Steel (Carrier)
  • Mil-Spec Gas Key (4130 Steel) attached with Grade 8 hardware and Properly staked
  • Lifetime Warranty (you break it, we replace it)
SKU:
NiB-LW-CO
UPC:
860006521490
Maximum Purchase:
30 units

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Write a Review
Rating:
8 Reviews

  • Ian

    Oct 3rd 2024
    5 Oct 3rd 2024
    High quality

    I purchased this for a 300BLK build. I wanted a build that would cycle super and subsonic ammo unsuppressed. Due to a proprietary buffer system I was unable to adjust buffer springs or weights. I choice this lightweight carrier to shed weight off the reciprocating mass. My gun now cycles supers and subs unsuppressed. Machining quality was top notch, all rough edges were knocked down and the finish is perfect. Dry this BCG feels like it's been oiled. All my standard milspec parts fit inside. This carrier also worked perfectly with a Franklin armory trigger. If you find yourself outrunning the trigger this is a good upgrade to increase bolt velocity and make out running the trigger a lot more difficult. There may be lighter carriers out there but it will be such a small difference i would go with this carrier over other options due to the quality and price.

  • Jim

    May 19th 2024
    5 May 19th 2024
    Rtb nib low mass bolt carrier

    Looks like it's very well built , gas key bolts look like they are staked perfect. Bought the nib bolt to go with it, can't wait to run it.

  • Pacho kurosaki

    Dec 16th 2023
    5 Dec 16th 2023
    RTB Lightweight Nickel Boron Carrier Only

    (TOTAL WEIGHT= 9oz With spare standard bcg parts) vs my standard 11.5oz BCG. this carrier is listed at 6.8oz but my scale show 6.9oz. This is a excellent bcg for people who have extra spare parts laying around want to shave of a few ounces without spending lots of money. Highly recommend

  • Steve G

    Nov 26th 2023
    5 Nov 26th 2023
    Excellent lightweight bolt carrier

    Nicely machined. Nicer NiB finish. Using with other NiB components in a suppressed 300 Blk. Runs smoothly. I have 4 other ARs running RTB lightweight BCGs. Best bang for the buck.

  • DIMITRIOS SOTIROPOULOS

    Nov 6th 2023
    5 Nov 6th 2023
    PERFECT FIT

    HAVE NOT ASSEMBLED IT YET

  • Stacy T

    Mar 25th 2023
    5 Mar 25th 2023
    Outstanding

    B.C. specifications were outstanding, fit and finish was as well. Best BC for the money on the market. Very pleased. Thanks RTB, you are fantastic.

  • Steve Michael

    Jan 14th 2023
    5 Jan 14th 2023
    Great BCG

    This is a fantastic BCG! The NIB coating is top notch on par with Aero Precision's NIB coating. Very impressed will be purchasing more.

  • Semper Fi

    Mar 4th 2021
    5 Mar 4th 2021
    Outstanding

    At the price I paid for this I did not expect top-notch, but at least good quality as many reviews seem to indicate for many RTB items. But whoa...this Low Mass BCG (stripped) was WAY beyond my expectations. Just a marvel to look at and hold, and the NiB coating was super smooth and flawless. Felt as a NB BCG should...as if it was lubed up already, yet dry. Have not fired yet but all indications, such as slipping easily in one of my Receiver's for initial fit, says it is going to be a winner. I wish they had more. But glad I caught this before it went away. Thanks for a fine specimen. And ridiculous price. Carry on...