Category
Semi-Automatic
1,567 products · page 1 of 33
Semi-automatic firearms are the backbone of modern shooting sports and personal defense, offering rapid, reliable follow-up shots. Our extensive selection covers everything from compact 9mm carry pistols like the Sig Sauer P365 and Glock 43X to versatile AR-15 platform rifles and tactical shotguns. We’ve got models from Springfield, Smith & Wesson, and Ruger ready for the range, competition, or home protection. Understanding the mechanics—like direct impingement versus piston-driven systems—helps you choose the right tool for your needs.
With over 1,500 options in this category alone, Delaware Firearms is your source for top-tier semi-autos. We break down the features so you can find a firearm that fits your hand and your purpose. Browse our full selection below.

Semi-Automatic
BARR 14552 M107A1 50BMG 20IN GREY
$11,914.00

Semi-Automatic
BARR 14085 M107A1 50BMG 29IN BLK
$11,914.00

Semi-Automatic
BARR 14559 M107A1 50BMG 29IN FDE
$11,914.00

Semi-Automatic
BARR 14084 M107A1 50BMG 20IN BLK
$11,914.00

Semi-Automatic
Barrett M82A1 50BMG 29″ Fluted Barrel 10+1 Black 13316
$8,846.00

Semi-Automatic
FN 46100030 M249S 5.56 PARA FDE
$8,699.00

Semi-Automatic
FN 56509 M249S 5.56 16.1 PARA BLK
$8,299.00

Semi-Automatic
FN 56460 M249S 5.56 20.5 FXD BLK
$7,999.00

Semi-Automatic
Barrett M82A1 50BMG 20″ Fluted Barrel 10+1 Black 13318
$7,873.00

Semi-Automatic
OOW 1918A3-SLR BAR 3006 24″ 20RD BKL
$5,702.07

Semi-Automatic
OOW 1918A3-SLR BAR 3006 24″ 20RD WLN
$5,702.07

Semi-Automatic
NEMO OMEN WATCHMAN 300WIN CARBON 24
$5,523.88

Semi-Automatic
OOW H.C.A.R 30-06SP 20″ 30RD FDE
$5,280.35

Semi-Automatic
OOW H.C.A.R 30-06SP 16″ 30RD FDE
$5,223.33

Semi-Automatic
OOW H.C.A.R 30-06SP 20″ 30RD BLK
$4,973.87

Semi-Automatic
OOW H.C.A.R 30-06SP 16″ 30RD BLK
$4,920.40

Semi-Automatic
Knights Armament SR-25 E2 308WIN 20″ Barrel 20+1 Black…
$4,900.00

Semi-Automatic
Knights Armament SR-25 E2 308WIN 16″ Barrel 20+1 Black…
$4,900.00

Semi-Automatic
Knights Armament SR-25 308WIN/7.62NATO 16″ Barrel Black…
$4,847.72

Semi-Automatic
FN Scar 20S 7.62X51mm Nato/308 Winchester 20″ Barrel 10+1 FDE 38996
$3,999.00

Semi-Automatic
NEMO EXECUTIVE ORDER 6.5 CREED 20 CARBON BBL
$3,759.56

Semi-Automatic
NEMO XO CARBON 6.5CM 20″ 20RD TUNG
$3,759.56

Semi-Automatic
2A BLR-16 CARBON 556NATO 16″ M-LOK
$3,415.00

Semi-Automatic
B&T APC300-SB PSTL 300BLK 8.3″ 30RD
$3,220.00

Semi-Automatic
B&T APC223 SB PSTL 223REM 8.7″ 30RD
$3,220.00

Semi-Automatic
SPG SA9804 M1A SUPER 308 SYN/SS
$3,162.84

Semi-Automatic
SPG SA9804CA M1A MCMILLAN 308 BLK/SS
$3,162.84

Semi-Automatic
FN SCAR 17S 308WIN/7.62 16.25″ 20+1 US Made 98561-1
$3,162.00

Semi-Automatic
Springfield Armory M1A Super Match 308WIN/7.62NATO 22″ Barrel 10+1…
$3,093.36

Semi-Automatic
SPG SA9121CA M1A M21 TACT 308 WAL/CRB
$3,024.04

Semi-Automatic
SPG SA9121 M1A M21 TACT 308 WAL/CRBN
$3,024.04

Semi-Automatic
THMP T150DCRTS 1927A1 45ACP CHROME/TIGER STRIPE
$2,996.50

Semi-Automatic
SAV 22940 MSR10 COMPETITION HD 308 18IN
$2,845.70

Semi-Automatic
NOVESKE GEN4 5.56 16″ 30RD MLOK GRN
$2,797.75

Semi-Automatic
Knights Armament SR-15 LPR Mod2 223 Remington/5.56NATO…
$2,722.16

Semi-Automatic
SPG SA9802CA M1A OVERSIZE 308 WAL/SS
$2,721.31

Semi-Automatic
SPG SA9802 M1A SUPER 308 WAL/SS
$2,721.31

Semi-Automatic
BER J40CT10 A400 XCEL MLTTG KO 12 30
$2,718.00

Semi-Automatic
NOVESKE GEN4 5.56 16″ 30RD MLOK BLK
$2,645.75

Semi-Automatic
NOVESKE GEN4 5.56 16″ 30RD KMOD BLK
$2,645.75

Semi-Automatic
LWRC IC 223 Remington/5.56NATO 16.1″…
$2,635.76

Semi-Automatic
POF 01565 REVOLUTION B-BRONZE 20 14M GEN4 6.5
$2,608.73

Semi-Automatic
POF 01467 REVOLUTION B-BRONZE 16 14M GEN4 308
$2,608.73

Semi-Automatic
BARR 17093 REC7 DMR 5.56 18IN GREY
$2,599.00

Semi-Automatic
NOVESKE INFIDEL GEN4 PSTL 13.7″ GRN
$2,574.50

Semi-Automatic
POF Revolution P308 Gen 4 .308 Win Rifle 16.5″ Barrel 20+1…
$2,549.00

Semi-Automatic
POF 01391 REV PISTOL 12 11M GEN4 308
$2,536.60

Semi-Automatic
SPG SA9102 M1A SUPER 308 WAL/BL
$2,521.31