Maxim Defense AR-15 Parts & Accessories

Maxim Defense is a Minnesota company making suppressors, short rifles and collapsing stocks. It made its name with the compact CQB stock and now pushes rifles built to run suppressed.

Market positioning: Duty / Professional.

Maxim Defense has 105 products available on GunPartPicker, ranging from $30.56 to $3505.50.

Maxim Defense Product Categories

  • Suppressor: 22 products
  • Buffer: 20 products
  • Stock & Brace: 19 products
  • Complete Rifle: 18 products
  • Upper Receiver: 6 products
  • Handguard: 4 products
  • Ammunition: 4 products
  • Muzzle Device: 3 products
  • 6mm ARC: 2 products
  • 5.56 NATO: 2 products
  • .300 Blackout: 2 products
  • 9mm: 1 product
  • Bipod: 1 product
  • 7.62x39mm: 1 product

Stock status: 46 in stock, 59 out of stock.

Community rating: 5.0 out of 5 based on 1 review.

Maxim Defense logo

Maxim Defense

5.0
(1)
105
Products
15
Retailers
Best overall: Optics Planet
$31 – $3506
Price Range
Best value: Optics Planet
35%
In Stock
98 of 279 listings
5.0
Avg Rating
1 reviews

Maxim Defense in October 2026 so far

Maxim Defense ranks #114 of 502 brands on GunPartPicker so far in October 2026, just behind Black Rain Ordnance, with about 1 in every 1000 parts builders added. Down from #97 in September. Builders are reaching for Maxim Defense mostly for stock & brace parts. The most added single part is the Maxim Defense CQB Gen 7 Standard Buffer Adjustable AR-15 Stock, Black - MXM-47617, on top again this month.

About 44% of the 105 Maxim Defense products we track are in stock today.

Also popular this month: Maxim Defense CQB AR-15 Stock - FDE | 4-Position A..., Maxim MXM47570 JP Silent Captured Spring Standard Tungstenstainless Steel, Maxim Defense CQB PDW Brace Standard AR-15 7075 Al... and Maxim Defense Industries CQB Extended Cheek Weld Buttstock Only Black.

All Maxim Defense monthly updates →

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers

Maxim Defense products

About Maxim Defense

Maxim Defense makes the compact CQB stock, plus suppressors and short rifles built to run suppressed.

St. Cloud, Minnesota · CQB stock · Suppressors · ISO 9001

Why Maxim Defense

Maxim Defense is a St. Cloud, Minnesota company that builds around short, suppressed rifles. The CQB stock is how most AR owners meet it.

The CQB is an MP5 style telescoping stock in 7075 aluminum. It runs from about 5.4 to 10 inches in four positions, weighs about 18.6 ounces and uses a JP Silent Captured Spring, with standard, heavy and 9mm buffer options.

The rest of the line is SDX and PDX short rifles, SCW and CCS stocks, and suppressors. The PRS can is a three piece titanium and aluminum design at about 10.8 ounces that comes apart with common tools.

It's expensive for a stock. These sell for about $340 against roughly $55 for the typical stock, and Maxim buffers run about $135 against roughly $55.

The short length of pull suits armor and short barrels, not long range comfort, and the stock needs its own buffer system. We'd buy a CQB for a compact SBR or pistol build and skip it on a standard carbine.

  • The CQB stock is an MP5 style telescoping stock in 7075 aluminum with a JP Silent Captured Spring, adjusting from about 5 to 10 inches.
  • The PRS suppressor uses a three piece MonoKore design in titanium and 7075-T6 aluminum, fully serviceable with common tools.
  • The SDX rifle system was designed from the start to run suppressed.

Brand Overview

Products105
PositioningDuty / Professional
Price Range$31 – $3506
In Stock46 of 105 (44%)

Available At

GritR SportsPalmetto State ArmoryKY Gun CompanyClassic FirearmsDirty Bird IndustriesSportsmans Outdoor SuperstoreBrownellsBattleHawk ArmoryGuns.comAR15 DiscountsOptics PlanetPrimary ArmsAmmunition DepotGrabAGun

Customer Ratings & Reviews(1)

User Ratings

(1 Rating, 5.0 Average)
2
2AFreedomMar 21, 2025

solid stuff. no issues.

Got this maxim defense buffer tube. Seems solid, no issues so far. Paired it with a cmmg bcg and it runs great. Not super fancy but gets the job done.

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