GunPartPicker

Heckler & Koch AR-15 Parts & Accessories

Heckler & Koch is a corporate/investor-backed company that has been manufacturing duty/professional-grade AR-15 buffer tubes, buffer springs, and optic mounts for over 20 years. Their products are made in the USA.

Heckler & Koch has been in business for 20+ years.

Manufacturing origin: Made in USA.

Market positioning: Duty / Professional.

Heckler & Koch has 24 products available on GunPartPicker, ranging from $4.99 to $3749.00.

Heckler & Koch Product Categories

  • Buffer Spring: 9 products
  • Optic Mount: 6 products
  • Complete Rifle: 4 products
  • Magazine: 1 product
  • Gas Block: 1 product
  • Dust Cover: 1 product
  • Buffer Tube: 1 product
  • Buffer Tube Assembly: 1 product

Stock status: 8 in stock, 16 out of stock.

Heckler & Koch logo

Heckler & Koch

Website
24
Products
11
Retailers
Best overall: BattleHawk Armory
$5 – $3749
Price Range
Best value: BattleHawk Armory
33%
In Stock
14 of 42 listings

Heckler & Koch on GunPartPicker

Builders have been adding Heckler & Koch parts to their builds on GunPartPicker since April 2026. The most added: H&K MR556 A4 5.56mm NATO 11in 10rd Semi-Auto Pistol (81001051), Heckler & Koch HK416 .22LR Semi-Automatic AR-15 Rifle - 81000402 and H&K MR556 A4 5.56mm NATO 16.5in 10rd Semi-Auto Rifle (81000828). About 33% of the 24 Heckler & Koch products we track are in stock today.

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers

Heckler & Koch products

About Heckler & Koch

Heckler & Koch is a corporate/investor-backed company that has been manufacturing duty/professional-grade AR-15 buffer tubes, buffer springs, and optic mounts for over 20 years. Their products are made in the USA.

Brand Overview

Products24
PositioningDuty / Professional
ManufacturingMade in USA
WarrantyLifetime Warranty
OwnershipCorporate / Investor-Backed
Established20+ Years
Price TierBudget-Friendly
Price Range$5 – $3749
In Stock8 of 24 (33%)

Available At

KY Gun CompanyAmmunition DepotPrimary ArmsPalmetto State ArmoryGritR SportsBattleHawk ArmoryBrownellsSportsmans Outdoor SuperstoreClassic FirearmsGuns.com

What Builders Choose

Based on real builds

Top Heckler & Koch products builders are adding

H&K MR556 A4 5.56mm NATO 11in 10rd Semi-Auto Pistol (81001051)
Complete Rifle·Frequently added

H&K MR556 A4 5.56mm NATO 11in 10rd Semi-Auto Pistol (81001051)

See price
Heckler & Koch Buffer Spring, Hk416
Buffer Spring·Added to builds

Heckler & Koch Buffer Spring, Hk416

$22.79
Heckler & Koch Ar-15/hk416 Carbine Buffer Tube
Buffer Tube·Added to builds

Heckler & Koch Ar-15/hk416 Carbine Buffer Tube

See price
Nut, Receiver Extension, HK416
Buffer Tube Assembly·Added to builds

Nut, Receiver Extension, HK416

See price

Customer Ratings & Reviews

No reviews yet for this brand.