Current Value of a HK SL8
How much is a H&K SL8 today? The average used HK SL8 is worth $640 to $1,500, though prices vary. It retailed brand-new for around $1,000 to $1,800 from dealers.
What Affects the Value of a H&K SL8 for Sale?
The value of a Model 39-2 is affected by its condition, variant, upgrades, and accessories.
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Price Factor 1: Condition
Better-condition H&K SL8 rifles always do better, price-wise. That’s true for nearly every gun.
Most firearm professionals will charge you a fee for an expert appraisal of your gun’s condition and value. We won’t and even allow you to get the appraisal online.
If you already have an expert appraisal of your gun’s condition, though, you can try using this tier guide to price it:
- New or mint
- Top of the price range
- Never-fired rifles, or new-in-box
- Perfect condition and function
- Excellent
- Around 10% less than mint
- Rarely used rifles
- Very light marks that require close inspection to find
- Very good
- Around 20% less than mint
- Lightly used rifles
- Mild but visible marks that you can practically count
- Good
- Around 30% less than mint
- Used rifles that have been cared for
- Marked by use but not in an ugly way
- Perfect function despite regular use
- Fair
- Around 40% less than mint
- Used guns that have not been cared for
- Marked by use, perhaps in unattractive ways
- Possibly mildly impaired or rough operation
- Poor
- Around 50% or less than mint
- Very beaten-up guns that may even be dented
- Functionally questionable, perhaps even broken
Price Factor 2: Variant
Heckler & Koch made several H&K SL8 variants. The ones available in the US civilian market are the ones below.
H&K SL8-1
The average H&K SL8-1 is worth around $640 to $1,500 used. It originally cost around $1,250 new when it was first launched.
This was the original SL8 in the US, with a gray stock and long Picatinny rail with iron sights. Its thumbhole stock and 10-round mag were designed to comply with the 1994 Assault Weapons Ban (AWB).
Superb-condition versions of this can cost more than the original MSRP now. Those with the magazine conversion are particularly desirable.
H&K SL8-6
The average H&K SL8-6 is worth around $720 to $1,500 used. It originally cost around $1,699 new when it was first launched.
This is the more recent version of the US SL8. H&K replaced the gray stock with a black one but kept the single-stack magazine and fixed thumbhole. The Picatinny rail was replaced with a short one.
The SL8-6 is easier to convert for improved magazine compatibility as well. This means it’s generally preferred by buyers seeking a gun for use instead of collector’s value.
Price Factor 3: Upgrades and Accessories
Certain upgrades or modifications can add to the value of an SL8. These are the ones we usually see buyers interested in.
G36 Conversions
Some gunsmiths have grown popular off conversions of the HK SL8, like TommyBuilt at Tommy Built Tactical. The conversion changes the SL8 to be closer to the original H&K G36.
The change alters the gun’s appearance, such as by allowing use of a side-folding stock. It also makes the gun compatible with higher-capacity double-stack G36 magazines.
It’s very expensive, however, with the cost of labor alone often hitting around $950.
Value: Depends on the buyer, as some will want to get the conversion done by their own gunsmith. Some buyers will pay up to 50% of the conversion cost added to the gun.
Magwell Conversions
Technically, the standard G36 conversion for an SL8 already includes a magwell conversion. But some people want a magwell conversion by itself – and even want the gun to accept STANAG or AR-15 mags, not G36 mags.
This conversion costs a little less than the G36 one. However, it can still run you anywhere from $550 to $750.
Value: Again, it depends on the buyer. If the conversion was done very well and is desired, you can add around 50% of the conversion’s cost to the price.
Optics and Mounts
Trijicon, Holosun, and EOTech are just a few of the usual brands you’ll see people looking for here. As long as your optic or mount is a good one (and is in great condition), you can usually sell it with the gun.
Value: Around 30% to 50% of the original price of the accessory
Spare Magazines
Probably one of the biggest issues with the original SL8 is that it uses proprietary 10-round magazines. If yours doesn’t have the magwell conversion, you might help your rifle sell faster by including spare mags.
Value: Around $25 to $30 per mag
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Don’t let someone shortchange you on that gun. We pay some of the highest prices possible for SL8s here, so let us send you an offer!
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