Does the FAXON Firearms URSSB762 ARAK-21 7.62x39 work with the ToolCraft 6.8 SPC Nitride?

Upper Receiver
FAXON Firearms URSSB762 ARAK-21 7.62x39 16\" Barrel
from $874.00

Bolt Carrier Group
ToolCraft 6.8 SPC Nitride
from $159.99
Faxon Firearms upper and Toolcraft bolt carrier group compatibility
They fit, with a catch
The FAXON Firearms URSSB762 ARAK-21 7.62x39 16\" works with the ToolCraft 6.8 SPC Nitride, with one thing to check: Bolt Carrier Group (6.8 SPC II) has a 6.8 SPC / .224 Valkyrie bolt; a 7.62x39mm build needs a 7.62x39 bolt.
Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.
Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.
How often builders pair the Faxon Firearms upper and Toolcraft bolt carrier group
Backed by thousands of qualified builds that have both an upper and a bolt carrier group.
Share of builds with the ToolCraft 6.8 SPC Nitride and any upper
FAXON Firearms URSSB762 ARAK-21 7.62x39
Not in enough builds yet to report.
ToolCraft 6.8 SPC Nitride
- Of bolt carrier group picks
- 0.1%
- Median paid
- $160
How we count ⌄
These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.
Frequently built with the Faxon Firearms upper and Toolcraft bolt carrier group
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Stock & Brace
Lower Receiver
Muzzle Device
Suppressor
Gas Block
Pistol Grip
Barrel

Ballistic Advantage Modern Series 18 Rifle-Length SPR W/
Fits, check note
FAXON Firearms URSSB762 vs ToolCraft 6.8 SPC Nitride: specs and prices
| FAXON Firearms URSSB762 | ToolCraft 6.8 SPC Nitride | |
|---|---|---|
| Best price | $874.00 at Optics Planet | $159.99 at Palmetto State Armory |
| Stores | 0 of 6 in stock | 1 of 1 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Caliber | 7.62x39mm | n/a |
| Length | 16 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Finish | n/a | Nitride |
Both for $1033.99 at today's best prices.
Today's best prices and 90 day price history
Every store we track for each part, cheapest in stock first. Prices are checked through the day.
FAXON Firearms URSSB762 ARAK-21 7.62x39 16\"
ToolCraft 6.8 SPC Nitride
- Palmetto State Armory$159.99
Price history, last 90 days
- FAXON Firearms URSSB762 ARAK-21 7.62x39: lowest $855.60 on Jul 5, highest $962.89 on Aug 4 over the last 90 days.
- ToolCraft 6.8 SPC Nitride: lowest $159.99 on Jul 5, highest $179.99 on Jul 16 over the last 90 days.
Bolt Carrier Groups most paired with Faxon Firearms uppers
The FAXON Firearms URSSB762 ARAK-21 7.62x39 is not in enough builds yet, so these are the most picked next to any Faxon Firearms upper. Only parts our rules say fit the FAXON Firearms URSSB762 ARAK-21 7.62x39 are listed.

Bravo Company
Fits, check noteCheck fit
Wilson Combat Bolt Carrier Assy 5.56 NATO Polished
Fits, check noteCheck fit
FAXON Firearms 5.56 Nitride TIN PVD
Fits, check noteCheck fit
Spike's Tactical 5.56 NATO Cut Lightweight
Fits, check noteCheck fit
Cryptic Coatings 5.56 NATO
Fits, check noteCheck fit
Upper Receivers frequently paired with the ToolCraft 6.8 SPC Nitride
Most picked next to it in real builds. Only parts our rules say fit the ToolCraft 6.8 SPC Nitride are listed.


Bravo Company Mfg w/ Laser T-Markings
Fits, check noteCheck fit
PSA 16" Mid Length 1/7 Nitride 15" Lightweight M-LOK
Fits, check noteCheck fit
PSA 16" Mid-Length 5.56 NATO 1/7 Nitride Timber Creek
Fits, check noteCheck fit
Bravo Company BCM 5.56 NATO Midlength Barreled Upper
Fits, check noteCheck fit
Bravo Company Manufacturing Standard 5.56 NATO Barreled
Fits, check noteCheck fit










