Hi Dannie, I don't own either but, you can see this very question posed to actual owners of both along with their unbiased opinions in this CZ forum : czfirearms.us/index.php?topic=92034.0

HK SL8-6

Name: HK SL8-6
Brand: Heckler & Koch Inc
SKU: 0000000190
Rating: 4 (4 reviews)

80%

Critic Rating

50%

User Rating

Positive vs Negative

12

0

MSRP:

$1499.00

Used Price:

$1499.00 +0.00%

Sale Price:

$1499.00 0.00%

Gun Stats

Damage 6.5 Yeets

Recoil 3 ft/sec

Accuracy 50 MOA

Muzzle Velocity 3200.000 ft/sec

Capacity 10+1 rounds

Mobility 1673

Ergonomics 50

What to Know

Critic Consensus

These days, theres nothing that compares to the AR-15 platform in terms of overall flexibility, accuracy, trigger, aftermarket parts, accessories and overall performance. When done right, ARs are reliable and durable. The FN SCAR beats the HK SL8-6 in most every categories, accuracy being the only notable exception. So even being the HK fanboy that I am, the SL8-6 only rates a ve... Read critic reviews...

HK SL8-6 for Sale

HK SL8-6 Critic Reviews

HK SL8-6 Description

A revolutionary rifle designthe HK SL8-6 is constructed almost entirely of a reinforced carbon-fiber polymer. Based on the combat-proven G36 rifle used by the German Army, the SL8-6 uses a proven short stroke, piston-actuated gas operating system, well known for simplicity and reliability. Designed and engineered to deliver exceptional shooting performance, the SL8 is a favorite among European target shooters, due in large part to its modular construction and free-floating bull barrel. A short Picatinny rail mount is standard and allows accessory optics to be easily added. Made using the famous HK cold-hammer forging process, the SL8-6 barrel ensures accuracy and long life. The ergonomic and clean lines of the HK SL8-6 are functional and modern, giving the SL8-6 the look and feel of a 21st century firearm.