Quick Summary
The 5KU CNC B30 Style Long Lower Handguard Rail is a black lower handguard rail for CYMA AK series AEG rifles, including AKM, AK74, AK102, AK104 and AK105 models. It is listed as a 254 mm part with a weight of about 255 g, and it uses CNC aluminium construction with Picatinny style rail sections.
This makes it a model-specific upgrade part rather than a universal fit. Check the exact rifle model and the handguard length you need before choosing an offer.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | 5KU, so buyers can confirm the maker when comparing similar parts. |
| Product type | Long lower handguard rail for an AK series AEG rifle. |
| Colour | Black, which matters if you want the part to match the rifle finish. |
| Length | Approx. 254 mm, so the size should be checked against the intended fit. |
| Weight | Approx. 255 g, a useful figure for buyers comparing handguard options. |
| Construction | CNC aluminium construction. |
| Rail style | Picatinny style rail sections. |
| Compatibility | CYMA AKM, AK74, AK102, AK104 and AK105 AK series AEG rifles. |
What to Compare Before Buying
- Rifle compatibility: This part is listed for CYMA AKM, AK74, AK102, AK104 and AK105 AK series AEG rifles. Match the exact rifle model before ordering.
- Length: The stated length is about 254 mm. Compare that with the space your rifle setup needs.
- Rail style: It uses Picatinny style rail sections. Check that this matches the accessory layout you want.
- Material: CNC aluminium construction may matter if you are matching an existing build or replacing a similar part.
What Else You May Need
Because this is a spare part, the buyer needs a compatible CYMA AK series AEG rifle. Confirm the exact rifle model and fit before fitting the part.
Before You Decide
Check the exact rifle model, the 254 mm length and the Picatinny style rail sections before choosing an offer. The part is listed for CYMA AKM, AK74, AK102, AK104 and AK105 AK series AEG rifles, so compatibility is the main buying check.





