Small Parts
Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.
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Out Of Stock
MM HK 21 (7.62x51/.308) Factory Style T- Rail Set
Michaels Machines
$275.00Michael's Machines HK 21 (7.62x51/.308) Factory Style T-Rail Set HK21 US-made rails for all HK21 builds. This is similar to the rails above, only prepped/cut for the HK21 feed mechanism.$275.00 -
Out Of Stock
Michaels Machines HK21E/PSG1/MSG90 Extractor
Michaels Machines
$275.95Michaels Machines HK21E/PSG1/MSG90 Extractor An essential replacement component to keep that HK21E running flawlessly. The extractor is a common wear item and no longer in production from HK. The MM extractor is an exact replica of the...$275.95 -
HK MSG90 (7.62x51/.308) -4 Rollers 7.96mm Set -Titanium
H&K Heckler & Koch
$329.95MSG90 (7.62x51/.308) -4 Rollers 7.96mm Set -Titanium Half moon rollers. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to order - plus-size rollers...$329.95 -
HK MP5K Thread Protector - .40 S&W - 3-Lug - Threaded 9/16x24
HKP HK Parts
$299.95HK MP5K .40 S&W 3-Lug Barrel Thread Protector - Threaded 9/16x24 This is 3-lugged Barrel with a 9/16x24 thread protector. It is rare hard to find, there are only a few available. Specifications: 3-Lugged Barrel Includes Thread Protector...$299.95 -
HK MSG90 (7.62x51/.308) Rollers 8.00mm Set - Titanium
H&K Heckler & Koch
$284.95HK German MSG-90 Titanium 8.00mm Set (one of two rollers) Half Moon Rollers Half moon rollers. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to order -...$284.95 -
HK MSG90 (7.62x51/.308) -2 Rollers 7.98mm Set -Titanium
H&K Heckler & Koch
$284.95HK German MSG-90 Titanium -2 or 7.98mm Half moon rollers. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to order - plus-size rollers increase the bolt gap...$284.95 -
HK MSG90 (7.62x51/.308) +4 Rollers 8.04mm Set -Titanium
H&K Heckler & Koch
$329.95MSG90 (7.62x51/.308) +4 Rollers 8.04mm Set -Titanium Half moon rollers. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to order - plus-size rollers...$329.95 -
HK MSG90 (7.62x51/.308) +2 Rollers 8.02mm Set -Titanium
H&K Heckler & Koch
$284.95MSG90 (7.62x51/.308) +2 Rollers 8.02mm Set -Titanium Half moon rollers. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to order - plus-size rollers increase the...$284.95