Fast processing • Family owned Help Order status info@nautilusarms.com

Upper Receivers & Conversion Kits

Upper Receivers & Conversion Kits

Shop By Price

Reset The filter has been reset

Add to Cart The item has been added

Advantage Arms

Advantage ADV Arms Conv Kit For LE20-21 W/Bag

✓ In stock

MSRP: $285.00

Was:

Now: $243.51
Radian Weapons

RADIAN UPPER/HANDGUARD SET 17" GRAY

✕ Out of stock

MSRP: $999.95

Was:

Now: $815.91
Add to Cart The item has been added

TROY Industries

Troy AK47 Rail Top Gas Tube Black

✓ In stock

MSRP: $185.00

Was:

Now: $156.23
Add to Cart The item has been added

CMMG

CMMG 22LR AR Conv Kit 3-10-Round Bravo

✓ In stock

MSRP: $239.95

Was:

Now: $196.74
Add to Cart The item has been added

Primary Weapons Systems

Primary Weapons Systems PWS MK116 MOD 1-M UPR 16" 762X39 Black

✓ In stock

MSRP: $1,299.95

Was:

Now: $981.25
Add to Cart The item has been added

Bootleg

Bootleg Billet AR 15 Upper REC Assmb

✓ In stock

MSRP: $189.95

Was:

Now: $175.30
Steyr Arms

STEYR 9MM CONVERSION KIT FOR AUG

✕ Out of stock

MSRP: $999.00

Was:

Now: $857.24
CMMG

CMMG 22LR AR CONV KIT 10RD BRAVO

✕ Out of stock

MSRP: $199.95

Was:

Now: $173.42
Add to Cart The item has been added

Spike's Tactical

Spike's Billet Upper GEN2 Milspec

✓ In stock

MSRP: $270.00

Was:

Now: $225.73
Add to Cart The item has been added

Advantage Arms

Advantage ADV Arms Conv Kit AAC17-22G3MOD-CA

✓ In stock

MSRP: $295.00

Was:

Now: $268.42
Advantage Arms

Advantage ADV Arms Conv Kit For LE19-23 W/Bag

✕ Out of stock

MSRP: $285.00

Was:

Now: $238.03
FN America

FN SCAR Nrch Cnvrsn For 17S/20S

✕ Out of stock

MSRP: $967.00

Was:

Now: $880.00
Add to Cart The item has been added

Advantage Arms

Advantage ADV Arms CNV KT26-27G1-5MOD CA 10-Round

✓ In stock

MSRP: $295.00

Was:

Now: $238.25
Add to Cart The item has been added

Advantage Arms

Advantage ADV Arms Conv Kit For LE17-22 G4/Bag

✓ In stock

MSRP: $285.00

Was:

Now: $246.36
CMMG

CMMG 22LR AR CONV KIT SS 25RD EVO

✕ Out of stock

MSRP: $199.95

Was:

Now: $173.42
Add to Cart The item has been added

Advantage Arms

Advantage ADV Arms Conv Kit For LE19-23 G4/Bag

✓ In stock

MSRP: $285.00

Was:

Now: $238.03
Rock River Arms

RRA CMPLT CAR A4 UPR 458 SOCOM 16"

✕ Out of stock

MSRP: $790.00

Was:

Now: $680.11
Add to Cart The item has been added

Advantage Arms

Advantage ADV Arms 22 Conv Kit PSA Dagger 15-Round

✓ In stock

MSRP: $385.00

Was:

Now: $320.73
Add to Cart The item has been added

Battle Arms Development

Battle Arms Development BAD 16 Uppr Auth Elite 556AMBI C Black

✓ In stock

MSRP: $865.20

Was:

Now: $770.31
Add to Cart The item has been added

Rise Armament

Rise Cmplt Uppr 6MM ARC 18" PAT Brown

✓ In stock

MSRP: $1,199.00

Was:

Now: $845.09
Advantage Arms

Advantage ADV Arms Conv Kit AAC17-22G3MOD

✕ Out of stock

MSRP: $395.00

Was:

Now: $326.99
Add to Cart The item has been added

Nordic Components

Nordic NC15 Extruded Upper Rcvr Black

✓ In stock

MSRP: $99.95

Was:

Now: $96.39
Add to Cart The item has been added

Nordic Components

Nordic 16" .22LR Complete Upper 10-Round

✓ In stock

MSRP: $610.00

Was:

Now: $533.12
Add to Cart The item has been added

CMMG

CMMG 22LR AR Conv Kit 3-25-Round Bravo

✓ In stock

MSRP: $239.95

Was:

Now: $196.74

Previous
1
2
3
4
5
6
7
8
Next