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Questions & Answers
The description says black which I am interested in, but the SKU does not match what a black one should be JLB-MBS-AR-B). Please confirm sku/color? Expert Answer

This JL Billet Modular Billet Stock is Black. The UPC matches the manufacturers UPC regarding color.

by Ethan, Gear Expert, February 9, 2023
What's in the box? MBS™ Buttstock Trigger set screw Allen wrench Quick Disconnect Sling Mount w/ hardware Rear rubber pad Rubber Cheek Rest Manufacturer Answer

Each box will contain an MBS™ Buttstock, Lever set screw, Allen wrench, Quick Disconnect Sling Mount w/ hardware, Rear rubber pad, Rubber Cheek Rest.

by JL Billet, Manufacturer, June 2, 2022
Customer Reviews
Helpful Positive Review
Awesome stock by Eric from MN, Verified Owner, September 12, 2020
This stock is a really nice piece. The quality of machining is top notch. The adjustment lever doesn't feel sticky at all like another review said. Maybe its because mine is cerakoted. The check weld is perfect with my Sig Bravo 4. If there was anyth...
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2/2 found this helpful
Helpful Negative Review
Beautiful Product,Poor Design by James Poole, Verified Owner, December 28, 2021
After reading the previous reviews regarding not fitting the buffer tube, I bought the recommended buffer tube when I ordered this stock. I waited over two months for it to arrive and it snapped right on the buffer tube and is beautiful! Next, thunk,...
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2/2 found this helpful
Most Recent Reviews
looks good, tight fit. by Chase Duarte, Verified Owner, October 19, 2025
Looks amazing like all JL products. Hardware is fading color already and bolts are all “tight”. Then assembling, the buffer tube will be tight (over oil it) and try to move it a few times. I would give this a solid 4, if it functioned a little bette...
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Most Recent Reviews
Great Stock by Hojoshaw, Verified Owner, January 19, 2025
These stocks sell out quickly and I never see them on sale on JL Billet website. So when opticsplanet had it on sale I grabbed it. This is a well made stock. After installing it I have no regrets. I highly recommend this for any build or just want ...
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Most Recent Reviews
Tried several mil spec tubes, finally found that this fits the Strike Industries tube. The lever to adjust the stock is very sticky even after applying some lube. Looks awesome, but probably not the best option if you routinely change stock positio...
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2/2 found this helpful
Most Recent Reviews
If it fits it's a great looking stock by Robert Mcgarvey, Verified Owner, December 2, 2019
Unfortunately it didnt fit my mil spec tube which was a surprise. Sometimes a lemon gets through it happens i understand that. The second problem was my habu charging handle wouldn't clear the the front or rear ill call it nut that holds the stock to...
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1/2 found this helpful
Read All 6 Reviews

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Product Info for JL Billet Modular Billet Stock

JL Billet's MBS (Modular Billet Stock) is a patented all aluminum modular buttstock designed to fit AR15 & AR10 Mil-Spec collapsible buffer tubes. We start with chunks of 6061 T6 aircraft grade aluminum and precision CNC machine each piece to ensure an exact fit and perfect function. The MBS is a modular design that allows all components of the stock to be replaced if damaged, you can also change up the color and design to set your AR15 apart from the rest. We don't use any plastic on this stock other than the rubber base and cheek pads, this allows you to Ceracoat or anodize whatever color you like to accessorize and customize to your specific needs. RAW STOCKS WILL SHIP UN-ASSEMBLED UNLESS REQUESTED OTHERWISE. The MBS is skeletonized to reduce weight while maintaining strength and giving a look like nothing else on the market. Weight without a buffer tube installed is only 16 oz. It's not for the weak guys who can't handle a few extra oz in their rifle. For those of you in California, the MBS can be used as fixed stock as well with the use of a longer trigger set screw US Patent #8,984,791 B1 What's in the box? MBS Buttstock Trigger set screw Allen wrench Quick Disconnect Sling Mount w/ hardware Rear rubber pad Rubber Cheek Rest We also offer bolt-on accessories to accommodate the MBS in whatever situation you're in. Bolt on picatinny rail, spike/hammer pad, quick disconnect sling mounts, standard sling mounts, cheek pads, and an adjustable cheek riser. made in specialized factories If this Item is ordered in a raw condition (raw aluminum coating option) it will be shipped disassembled. If you would like the stock assembledimage

WARNING: California`s Proposition 65

Specifications for JL Billet Modular Billet Stock:

Manufacturer: JL Billet
Color: Black
Gun Model: AR-10, AR-15
Gun Type: Rifle
Weight: 1 lb
Additional Features: Skeletonized
Hand: Ambidextrous
Fabric/Material: 6061-T6 Aluminum

Features of JL Billet Modular Billet Stock

  • JL Billet MBS-AR15 (Modular Billet Stock) all aluminum, fully modular design buttstock for AR15 platform

Package Contents:

  • JL Billet Modular Billet Stock

JL Billet Modular Billet Stock Orderable Models

List of Orderable Models

  • JL Billet Modular Billet Stock, Black, JLB-MBS-AR-A , MPN: JLB-MBS-AR-A , UPC: 617407023800 , Code: 3KR-BSC-JLBUTTCMBS-JLB-MBS-AR-A
  • DEMO, JL Billet Modular Billet Stock, Black, JLB-MBS-AR-A , MPN: JLB-MBS-AR-A-DEMO , Code: 3KR-BSC-JLBUTTCMBS-JLB-MBS-AR-A-DEMO

JL Billet Modular Billet Stock Unavailable & Discontinued Models

List of Unorderable Models

  • USED JL Billet Modular Billet Stock, Black, JLB-MBS-AR-A, EDEMO2, Used, Condition Like New , MPN: JLB-MBS-AR-A-EDEMO2 , Code: 3KR-BSC-JLBUTTCMBS-JLB-MBS-AR-A-EDEMO2
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